RAMSET CBAGR18 User manual

Owners Manual
18V Angle Grinder
BRUSHLESS

Angle Grinder 18V Owners Manual
- 02 -
1 609 92A 47F | (14.11.17) Bosch Power Tools
5 | 4 |
1 609 92A 47F | (14.11.17) Bosch Power Tools
A
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OBJ_BUCH-3456-001.book Page 4 Tuesday, November 14, 2017 1:42 PM
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- 03 -
Angle Grinder18V Owners Manual
1 609 92A 47F | (14.11.17) Bosch Power Tools
5 | 4 |
1 609 92A 47F | (14.11.17) Bosch Power Tools
A
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4
7
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16
28
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4
OBJ_BUCH-3456-001.book Page 4 Tuesday, November 14, 2017 1:42 PM
(25)
(9)
(26)
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Bosch Power Tools 1 609 92A 4B1 | (09.05.2018)
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Angle Grinder 18V Owners Manual
- 04 -
1 609 92A 47F | (14.11.17) Bosch Power Tools
English
Safety Notes
General Power Tool Safety Warnings
Read all safety warnings and all instruc-
tions. Failure to follow the warnings and
instructions may result in electric shock, fire and/or serious
injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mains-
operated (corded) power tool or battery-operated (cordless)
power tool.
Work area safety
Keep work area clean and well lit. Cluttered or dark areas
invite accidents.
Do not operate power tools in explosive atmospheres,
such as in the presence of flammable liquids, gases or
dust. Power tools create sparks which may ignite the dust
or fumes.
Keep children and bystanders away while operating a
power tool. Distractions can cause you to lose control.
WARNING
OBJ_BUCH-3456-001.book Page 20 Tuesday, November 14, 2017 1:42 PM
English | 21
Bosch Power Tools 1 609 92A 47F | (14.11.17)
Electrical safety
Power tool plugs must match the outlet. Never modify
the plug in any way. Do not use any adapter plugs with
earthed (grounded) power tools. Unmodified plugs and
matching outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded surfaces,
such as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your body is
earthed or grounded.
Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of electric
shock.
Do not abuse the cord. Never use the cord for carrying,
pulling or unplugging the power tool. Keep cord away
from heat, oil, sharp edges or moving parts. Damaged
or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an exten-
sion cord suitable for outdoor use. Use of a cord suitable
for outdoor use reduces the risk of electric shock.
If operating a power tool in a damp location is unavoid-
able, use a residual current device (RCD) protected
supply. Use of an RCD reduces the risk of electric shock.
Personal safety
Stay alert, watch what you are doing and use common
sense when operating a power tool. Do not use a power
tool while you are tired or under the influence of drugs,
alcohol or medication. A moment of inattention while op-
erating power tools may result in serious personal injury.
Use personal protective equipment. Always wear eye
protection. Protective equipment such as dust mask,
non-skid safety shoes, hard hat, or hearing protection
used for appropriate conditions will reduce personal inju-
ries.
Prevent unintentional starting. Ensure the switch is in
the off-position before connecting to power source
and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or en-
ergising power tools that have the switch on invites acci-
dents.
Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached to a ro-
tating part of the power tool may result in personal injury.
Do not overreach. Keep proper footing and balance at
all times. This enables better control of the power tool in
unexpected situations.
Dress properly. Do not wear loose clothing or jewel-
lery. Keep your hair, clothing and gloves away from
moving parts. Loose clothes, jewellery or long hair can be
caught in moving parts.
If devices are provided for the connection of dust ex-
traction and collection facilities, ensure these are con-
nected and properly used. Use of dust collection can re-
duce dust-related hazards.
Power tool use and care
Do not force the power tool. Use the correct power tool
for your application. The correct power tool will do the
job better and safer at the rate for which it was designed.
Do not use the power tool if the switch does not turn it
on and off. Any power tool that cannot be controlled with
the switch is dangerous and must be repaired.
Disconnect the plug from the power source and/or the
battery pack from the power tool before making any
adjustments, changing accessories, or storing power
tools. Such preventive safety measures reduce the risk of
starting the power tool accidentally.
Store idle power tools out of the reach of children and
do not allow persons unfamiliar with the power tool or
these instructions to operate the power tool. Power
tools are dangerous in the hands of untrained users.
Maintain power tools. Check for misalignment or bind-
ing of moving parts, breakage of parts and any other
condition that may affect the power tool’s operation. If
damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power
tools.
Keep cutting tools sharp and clean. Properly maintained
cutting tools with sharp cutting edges are less likely to bind
and are easier to control.
Use the power tool, accessories and tool bits etc. in ac-
cordance with these instructions, taking into account
the working conditions and the work to be performed.
Use of the power tool for operations different from those
intended could result in a hazardous situation.
Battery tool use and care
Recharge only with the charger specified by the manu-
facturer. A charger that is suitable for one type of battery
pack may create a risk of fire when used with another bat-
tery pack.
Use power tools only with specifically designated bat-
tery packs. Use of any other battery packs may create a
risk of injury and fire.
When battery pack is not in use, keep it away from oth-
er metal objects, like paper clips, coins, keys, nails,
screws or other small metal objects, that can make a
connection from one terminal to another. Shorting the
battery terminals together may cause burns or a fire.
Under abusive conditions, liquid may be ejected from
the battery; avoid contact. If contact accidentally oc-
curs, flush with water. If liquid contacts eyes, addition-
ally seek medical help. Liquid ejected from the battery
may cause irritation or burns.
Service
Have your power tool serviced by the Ramset National
Service Centre using only identical replacement
parts. This will ensure that the safety of the power tool is
maintained.
OBJ_BUCH-3456-001.book Page 21 Tuesday, November 14, 2017 1:42 PM

- 05 -
Angle Grinder18V Owners Manual
1 609 92A 47F | (14.11.17) Bosch Power Tools
English
Safety Notes
General Power Tool Safety Warnings
Read all safety warnings and all instruc-
tions. Failure to follow the warnings and
instructions may result in electric shock, fire and/or serious
injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mains-
operated (corded) power tool or battery-operated (cordless)
power tool.
Work area safety
Keep work area clean and well lit. Cluttered or dark areas
invite accidents.
Do not operate power tools in explosive atmospheres,
such as in the presence of flammable liquids, gases or
dust. Power tools create sparks which may ignite the dust
or fumes.
Keep children and bystanders away while operating a
power tool. Distractions can cause you to lose control.
WARNING
OBJ_BUCH-3456-001.book Page 20 Tuesday, November 14, 2017 1:42 PM
English | 21
Bosch Power Tools 1 609 92A 47F | (14.11.17)
Electrical safety
Power tool plugs must match the outlet. Never modify
the plug in any way. Do not use any adapter plugs with
earthed (grounded) power tools. Unmodified plugs and
matching outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded surfaces,
such as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your body is
earthed or grounded.
Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of electric
shock.
Do not abuse the cord. Never use the cord for carrying,
pulling or unplugging the power tool. Keep cord away
from heat, oil, sharp edges or moving parts. Damaged
or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an exten-
sion cord suitable for outdoor use. Use of a cord suitable
for outdoor use reduces the risk of electric shock.
If operating a power tool in a damp location is unavoid-
able, use a residual current device (RCD) protected
supply. Use of an RCD reduces the risk of electric shock.
Personal safety
Stay alert, watch what you are doing and use common
sense when operating a power tool. Do not use a power
tool while you are tired or under the influence of drugs,
alcohol or medication. A moment of inattention while op-
erating power tools may result in serious personal injury.
Use personal protective equipment. Always wear eye
protection. Protective equipment such as dust mask,
non-skid safety shoes, hard hat, or hearing protection
used for appropriate conditions will reduce personal inju-
ries.
Prevent unintentional starting. Ensure the switch is in
the off-position before connecting to power source
and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or en-
ergising power tools that have the switch on invites acci-
dents.
Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached to a ro-
tating part of the power tool may result in personal injury.
Do not overreach. Keep proper footing and balance at
all times. This enables better control of the power tool in
unexpected situations.
Dress properly. Do not wear loose clothing or jewel-
lery. Keep your hair, clothing and gloves away from
moving parts. Loose clothes, jewellery or long hair can be
caught in moving parts.
If devices are provided for the connection of dust ex-
traction and collection facilities, ensure these are con-
nected and properly used. Use of dust collection can re-
duce dust-related hazards.
Power tool use and care
Do not force the power tool. Use the correct power tool
for your application. The correct power tool will do the
job better and safer at the rate for which it was designed.
Do not use the power tool if
the switch does not turn it
on and off.
Any power tool that cannot be controlled with
the switch is dangerous and must be repaired.
Disconnect the plug from the power source and/or the
battery pack from the power tool before making any
adjustments, changing accessories, or storing power
tools.
Such preventive safety measures reduce the risk of
starting the power tool accidentally.
Store idle power tools out of the reach of children and
do not allow persons unfamiliar with the power tool or
these instructions to operate the power tool. Power
tools are dangerous in the hands of untrained users.
Maintain power tools. Check
for misalignment or bind-
ing of moving parts, breakage of parts and any other
condition that may affect the
power tool’s operation. If
damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power
tools.
Keep cutting tools sharp and clean.
Properly maintained
cutting tools with sharp cutting
edges are less likely to bind
and are easier to control.
Use the power tool, accessories
and tool bits etc. in ac-
cordance with these instructions, taking into account
the working conditions and th
e work to be performed.
Use of the power tool for operations different from those
intended could result in a hazardous situation.
Battery tool use and care
Recharge only with the charger specified by the manu-
facturer. A charger that is suitable for one type of battery
pack may create a risk of fire when used with another bat-
tery pack.
Use power tools only with specifically designated bat-
tery packs. Use of any other battery packs may create a
risk of injury and fire.
When battery pack is not in use, keep it away from oth-
er metal objects, like paper clips, coins, keys, nails,
screws or other small metal objects, that can make a
connection from one terminal to another. Shorting the
battery terminals together may cause burns or a fire.
Under abusive conditions, liquid may be ejected from
the battery; avoid contact. If contact accidentally oc-
curs, flush with water. If li
quid contacts eyes, addition-
ally seek medical help. Liquid ejected from the battery
may cause irritation or burns.
Service
Have your power tool serviced by the Ramset
National
Service Centre using only identical replacement
parts. This will ensure that the safety of the power tool is
maintained.
OBJ_BUCH-3456-001.book Page 21 Tuesday, November 14, 2017 1:42 PM

Angle Grinder 18V Owners Manual
- 06 -
22 | English
1 609 92A 47F | (14.11.17) Bosch Power Tools
Safety Warnings for Angle Grinder
Safety Warnings common for Grinding, Sanding,
Wire Brushing or Abrasive Cutting Off Operations
This power tool is intended to function as a grinder,
sander, wire brush or cut-off tool. Read all safety warn-
ings, instructions, illustrations and specifications pro-
vided with this power tool. Failure to follow all instruc-
tions listed below may result in electric shock, fire and/or
serious injury.
Operations such as polishing are not recommended to
be performed with this power tool. Operations for which
the power tool was not designed may create a hazard and
cause personal injury.
Do not use accessories which are not specifically de-
signed and recommended by the tool manufacturer.
Just because the accessory can be attached to your power
tool, it does not assure safe operation.
The rated speed of the accessory must be at least equal
to the maximum speed marked on the power tool. Ac-
cessories running faster than their rated speed can break
and fly apart.
The outside diameter and the thickness of your acces-
sory must be within the capacity rating of your power
tool. Incorrectly sized accessories cannot be adequately
controlled.
Threaded mounting of accessories must match the grind-
er spindle thread. For accessories mounted by flanges,
the arbour hole of the accessory must fit the locating di-
ameter of the flange. Accessories that do not match the
mounting hardware of the power tool will run out of balance,
vibrate excessively and may cause loss of control.
Do not use a damaged accessory. Before each use in-
spect the accessory such as abrasive wheels for chips
and cracks, backing pad for cracks, tear or excess
wear, wire brush for loose or cracked wires. If power
tool or accessory is dropped, inspect for damage or in-
stall an undamaged accessory. After inspecting and in-
stalling an accessory, position yourself and bystanders
away from the plane of the rotating accessory and run
the power tool at maximum no-load speed for one min-
ute. Damaged accessories will normally break apart during
this test time.
Wear personal protective equipment. Depending on
application, use face shield, safety goggles or safety
glasses. As appropriate, wear dust mask, hearing pro-
tectors, gloves and workshop apron capable of stop-
ping small abrasive or workpiece fragments. The eye
protection must be capable of stopping flying debris gen-
erated by various operations. The dust mask or respirator
must be capable of filtrating particles generated by your
operation. Prolonged exposure to high intensity noise may
cause hearing loss.
Keep bystanders a safe distance away from work area.
Anyone entering the work area must wear personal
protective equipment. Fragments of workpiece or of a
broken accessory may fly away and cause injury beyond
immediate area of operation.
Hold power tool by insulated gripping surfaces only,
when performing an operation where the cutting ac-
cessory may contact hidden wiring. Cutting accessory
contacting a “live” wire may make exposed metal parts of
the power tool “live” and shock the operator.
Never lay the power tool down until the accessory has
come to a complete stop. The spinning accessory may gr-
ab the surface and pull the power tool out of your control.
Do not run the power tool while carrying it at your side.
Accidental contact with the spinning accessory could snag
your clothing, pulling the accessory into your body.
Regularly clean the power tool’s air vents. The motor’s
fan will draw the dust inside the housing and excessive ac-
cumulation of powdered metal may cause electrical haz-
ards.
Do not operate the power tool near flammable materi-
als. Sparks could ignite these materials.
Do not use accessories that require liquid coolants. Us-
ing water or other liquid coolants may result in electrocu-
tion or shock.
Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged ro-
tating wheel, sanding band, brush or any other accessory.
Pinching or snagging causes rapid stalling of the rotating
accessory which in turn causes the uncontrolled power
tool to be forced in the direction opposite of the accesso-
ry's rotation.
For example, if an abrasive wheel is snagged or pinched by
the workpiece, the edge of the wheel that is entering into
the pinch point can dig into the surface of the material
causing the wheel to climb out or kick out. The wheel may
either jump toward or away from the operator, depending
on direction of the wheel’s movement at the point of pinch-
ing. Abrasive wheels may also break under these condi-
tions.
Kickback is the result of power tool misuse and/or incor-
rect operating procedures or conditions and can be avoid-
ed by taking proper precautions as given below.
Maintain a firm grip on the power tool and position your
body and arm to allow you to resist kickback forces. Al-
ways use auxiliary handle, if provided, for maximum
control over kickback or torque reaction during
start-up. The operator can control torque reactions or
kickback forces, if proper precautions are taken.
Never place your hand near the rotating accessory. Ac-
cessory may kickback over your hand.
Do not position your body in the area where power tool
will move if kickback occurs. Kickback will propel the
tool in direction opposite to the wheel’s movement at the
point of snagging.
Use special care when working corners, sharp edges,
etc. Avoid bouncing and snagging the accessory. Cor-
ners, sharp edges or bouncing have a tendency to snag the
rotating accessory and cause loss of control or kickback.
Do not attach a saw chain woodcarving blade or
toothed saw blade. Such blades create frequent kickback
and loss of control.
OBJ_BUCH-3456-001.book Page 22 Tuesday, November 14, 2017 1:42 PM
English | 23
Bosch Power Tools 1 609 92A 47F | (14.11.17)
Safety warnings specific for Grinding and Abrasive
Cutting-Off operations
Use only wheel types that are recommended for your
power tool and the specific guard designed for the se-
lected wheel. Wheels for which the power tool was not de-
signed cannot be adequately guarded and are unsafe.
The grinding surface of the centre depressed wheels
must be mounted below the plane of the guard lip. An
improperly mounted wheel that projects through the plane
of the guard lip cannot be adequately protected.
The guard must be securely attached to the power tool
and positioned for maximum safety, so the least
amount of wheel is exposed towards the operator. The
guard helps to protect operator from broken wheel frag-
ments, accidental contact with wheel and sparks that
could ignite clothing.
Wheels must be used only for recommended applica-
tions. For example: do not grind with the side of the
cut-off wheel. Abrasive cut-off wheels are intended for
peripheral grinding; side forces applied to these wheels
may cause them to shatter.
Always use undamaged wheel flanges that are of cor-
rect size and shape for your selected wheel. Proper
wheel flanges support the wheel thus reducing the possi-
bility of wheel breakage. Flanges for cut-off wheels may be
different from grinding wheel flanges.
Do not use worn down reinforced wheels from larger
power tools. Wheels intended for larger power tools are
not suitable for the higher speed of a smaller tool and may
burst.
Additional safety warnings specific for abrasive cutting
off operations
Do not “jam” the cut-off wheel or apply excessive pres-
sure. Do not attempt to make an excessive depth of cut.
Overstressing the wheel increases the loading and suscep-
tibility to twisting or binding of the wheel in the cut and the
possibility of kickback or wheel breakage.
Do not position your body in line with and behind the
rotating wheel. When the wheel, at the point of operation,
is moving away from your body, the possible kickback may
propel the spinning wheel and the power tool directly at
you.
When wheel is binding or when interrupting a cut for
any reason, switch off the power tool and hold the pow-
er tool motionless until the wheel comes to a complete
stop. Never attempt to remove the cut-off wheel from
the cut while the wheel is in motion otherwise kickback
may occur. Investigate and take corrective action to elimi-
nate the cause of wheel binding.
Do not restart the cutting operation in the workpiece.
Let the wheel reach full speed and carefully re-enter
the cut. The wheel may bind, walk up or kickback if the
power tool is restarted in the workpiece.
Support panels or any oversized workpiece to minimize
the risk of wheel pinching and kickback. Large work-
pieces tend to sag under their own weight. Supports must
be placed under the workpiece near the line of cut and near
the edge of the workpiece on both sides of the wheel.
Use extra caution when making a “pocket cut” into ex-
isting walls or other blind areas. The protruding wheel
may cut gas or water pipes, electrical wiring or objects that
can cause kickback.
Safety warnings specific for sanding operations
Do not use excessively oversized sanding disc paper.
Follow manufacturers recommendations, when select-
ing sanding paper. Larger sanding paper extending be-
yond the sanding pad presents a laceration hazard and
may cause snagging, tearing of the disc, or kickback.
Safety warnings specific for wire brushing operations
Be aware that wire bristles are thrown by the brush
even during ordinary operation. Do not overstress the
wires by applying excessive load to the brush. The wire
bristles can easily penetrate light clothing and/or skin.
If the use of a guard is recommended for wire brushing,
do not allow any interference of the wire wheel or
brush with the guard. Wire wheel or brush may expand in
diameter due to work load and centrifugal forces.
Additional safety warnings
Wear safety goggles.
Use appropriate detectors to determine if utility lines
are hidden in the work area or call the local utility com-
pany for assistance. Contact with electric lines can lead to
fire and electric shock. Damaging a gas line can lead to ex-
plosion. Penetrating a water line causes property damage.
Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
Secure the workpiece. A workpiece clamped with clamp-
ing devices or in a vice is held more secure than by hand.
Do not open the battery. Danger of short-circuiting.
Protect the battery against heat, e. g., against
continuous intense sunlight, fire, water, and
moisture. Danger of explosion.
In case of damage and improper use of the battery,
vapours may be emitted. Ventilate the area and seek
medical help in case of complaints. The vapours can
irritate the respiratory system.
Use the battery only in conjunction with your Ramset
product. This measure alone protects the battery against
dangerous overload.
The battery can be damaged by pointed objects such
as nails or screwdrivers or by force applied externally.
An internal short circuit can occur and the battery can
burn, smoke, explode or overheat.
OBJ_BUCH-3456-001.book Page 23 Tuesday, November 14, 2017 1:42 PM

- 07 -
Angle Grinder18V Owners Manual
22 | English
1 609 92A 47F | (14.11.17) Bosch Power Tools
Safety Warnings for Angle Grinder
Safety Warnings common for Grinding, Sanding,
Wire Brushing or Abrasive Cutting Off Operations
This power tool is intended to function as a grinder,
sander, wire brush or cut-off tool. Read all safety warn-
ings, instructions, illustrations and specifications pro-
vided with this power tool. Failure to follow all instruc-
tions listed below may result in electric shock, fire and/or
serious injury.
Operations such as polishing are not recommended to
be performed with this power tool. Operations for which
the power tool was not designed may create a hazard and
cause personal injury.
Do not use accessories which are not specifically de-
signed and recommended by the tool manufacturer.
Just because the accessory can be attached to your power
tool, it does not assure safe operation.
The rated speed of the accessory must be at least equal
to the maximum speed marked on the power tool. Ac-
cessories running faster than their rated speed can break
and fly apart.
The outside diameter and the thickness of your acces-
sory must be within the capacity rating of your power
tool. Incorrectly sized accessories cannot be adequately
controlled.
Threaded mounting of accessories must match the grind-
er spindle thread. For accessories mounted by flanges,
the arbour hole of the accessory must fit the locating di-
ameter of the flange. Accessories that do not match the
mounting hardware of the power tool will run out of balance,
vibrate excessively and may cause loss of control.
Do not use a damaged accessory. Before each use in-
spect the accessory such as abrasive wheels for chips
and cracks, backing pad for cracks, tear or excess
wear, wire brush for loose or cracked wires. If power
tool or accessory is dropped, inspect for damage or in-
stall an undamaged accessory. After inspecting and in-
stalling an accessory, position yourself and bystanders
away from the plane of the rotating accessory and run
the power tool at maximum no-load speed for one min-
ute. Damaged accessories will normally break apart during
this test time.
Wear personal protective equipment. Depending on
application, use face shield, safety goggles or safety
glasses. As appropriate, wear dust mask, hearing pro-
tectors, gloves and workshop apron capable of stop-
ping small abrasive or workpiece fragments. The eye
protection must be capable of stopping flying debris gen-
erated by various operations. The dust mask or respirator
must be capable of filtrating particles generated by your
operation. Prolonged exposure to high intensity noise may
cause hearing loss.
Keep bystanders a safe distance away from work area.
Anyone entering the work area must wear personal
protective equipment. Fragments of workpiece or of a
broken accessory may fly away and cause injury beyond
immediate area of operation.
Hold power tool by insulated gripping surfaces only,
when performing an operation where the cutting ac-
cessory may contact hidden wiring. Cutting accessory
contacting a “live” wire may make exposed metal parts of
the power tool “live” and shock the operator.
Never lay the power tool down until the accessory has
come to a complete stop. The spinning accessory may gr-
ab the surface and pull the power tool out of your control.
Do not run the power tool while carrying it at your side.
Accidental contact with the spinning accessory could snag
your clothing, pulling the accessory into your body.
Regularly clean the power tool’s air vents. The motor’s
fan will draw the dust inside the housing and excessive ac-
cumulation of powdered metal may cause electrical haz-
ards.
Do not operate the power tool near flammable materi-
als. Sparks could ignite these materials.
Do not use accessories that require liquid coolants. Us-
ing water or other liquid coolants may result in electrocu-
tion or shock.
Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged ro-
tating wheel, sanding band, brush or any other accessory.
Pinching or snagging causes rapid stalling of the rotating
accessory which in turn causes the uncontrolled power
tool to be forced in the direction opposite of the accesso-
ry's rotation.
For example, if an abrasive wheel is snagged or pinched by
the workpiece, the edge of the wheel that is entering into
the pinch point can dig into the surface of the material
causing the wheel to climb out or kick out. The wheel may
either jump toward or away from the operator, depending
on direction of the wheel’s movement at the point of pinch-
ing. Abrasive wheels may also break under these condi-
tions.
Kickback is the result of power tool misuse and/or incor-
rect operating procedures or conditions and can be avoid-
ed by taking proper precautions as given below.
Maintain a firm grip on the power tool and position your
body and arm to allow you to resist kickback forces. Al-
ways use auxiliary handle, if provided, for maximum
control over kickback or torque reaction during
start-up. The operator can control torque reactions or
kickback forces, if proper precautions are taken.
Never place your hand near the rotating accessory. Ac-
cessory may kickback over your hand.
Do not position your body in the area where power tool
will move if kickback occurs. Kickback will propel the
tool in direction opposite to the wheel’s movement at the
point of snagging.
Use special care when working corners, sharp edges,
etc. Avoid bouncing and snagging the accessory. Cor-
ners, sharp edges or bouncing have a tendency to snag the
rotating accessory and cause loss of control or kickback.
Do not attach a saw chain woodcarving blade or
toothed saw blade. Such blades create frequent kickback
and loss of control.
OBJ_BUCH-3456-001.book Page 22 Tuesday, November 14, 2017 1:42 PM
English | 23
Bosch Power Tools 1 609 92A 47F | (14.11.17)
Safety warnings specific for Grinding and Abrasive
Cutting-Off operations
Use only wheel types that are recommended for your
power tool and the specific guard designed for the se-
lected wheel. Wheels for which the power tool was not de-
signed cannot be adequately guarded and are unsafe.
The grinding surface of the centre depressed wheels
must be mounted below the plane of the guard lip. An
improperly mounted wheel that projects through the plane
of the guard lip cannot be adequately protected.
The guard must be securely attached to the power tool
and positioned for maximum safety, so the least
amount of wheel is exposed towards the operator. The
guard helps to protect operator from broken wheel frag-
ments, accidental contact with wheel and sparks that
could ignite clothing.
Wheels must be used only for recommended applica-
tions. For example: do not grind with the side of the
cut-off wheel. Abrasive cut-off wheels are intended for
peripheral grinding; side forces applied to these wheels
may cause them to shatter.
Always use undamaged wheel flanges that are of cor-
rect size and shape for your selected wheel. Proper
wheel flanges support the wheel thus reducing the possi-
bility of wheel breakage. Flanges for cut-off wheels may be
different from grinding wheel flanges.
Do not use worn down reinforced wheels from larger
power tools. Wheels intended for larger power tools are
not suitable for the higher speed of a smaller tool and may
burst.
Additional safety warnings specific for abrasive cutting
off operations
Do not “jam” the cut-off wheel or apply excessive pres-
sure. Do not attempt to make an excessive depth of cut.
Overstressing the wheel increases the loading and suscep-
tibility to twisting or binding of the wheel in the cut and the
possibility of kickback or wheel breakage.
Do not position your body in line with and behind the
rotating wheel. When the wheel, at the point of operation,
is moving away from your body, the possible kickback may
propel the spinning wheel and the power tool directly at
you.
When wheel is binding or when interrupting a cut for
any reason, switch off the power tool and hold the pow-
er tool motionless until the wheel comes to a complete
stop. Never attempt to remove the cut-off wheel from
the cut while the wheel is in motion otherwise kickback
may occur. Investigate and take corrective action to elimi-
nate the cause of wheel binding.
Do not restart the cutting operation in the workpiece.
Let the wheel reach full speed and carefully re-enter
the cut. The wheel may bind, walk up or kickback if the
power tool is restarted in the workpiece.
Support panels or any oversized workpiece to minimize
the risk of wheel pinching and kickback. Large work-
pieces tend to sag under their own weight. Supports must
be placed under the workpiece near the line of cut and near
the edge of the workpiece on both sides of the wheel.
Use extra caution when making a “pocket cut” into ex-
isting walls or other blind areas. The protruding wheel
may cut gas or water pipes, electrical wiring or objects that
can cause kickback.
Safety warnings specific for sanding operations
Do not use excessively oversized sanding disc paper.
Follow manufacturers recommendations, when select-
ing sanding paper. Larger sanding paper extending be-
yond the sanding pad presents a laceration hazard and
may cause snagging, tearing of the disc, or kickback.
Safety warnings specific for wire brushing operations
Be aware that wire bristles are thrown by the brush
even during ordinary operation. Do not overstress the
wires by applying excessive load to the brush. The wire
bristles can easily penetrate light clothing and/or skin.
If the use of a guard is recommended for wire brushing,
do not allow any interference of the wire wheel or
brush with the guard. Wire wheel or brush may expand in
diameter due to work load and centrifugal forces.
Additional safety warnings
Wear safety goggles.
Use appropriate detectors to determine if utility lines
are hidden in the work area or call the local utility com-
pany for assistance. Contact with electric lines can lead to
fire and electric shock. Damaging a gas line can lead to ex-
plosion. Penetrating a water line causes property damage.
Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
Secure the workpiece. A workpiece clamped with clamp-
ing devices or in a vice is held more secure than by hand.
Do not open the battery. Danger of short-circuiting.
Protect the battery against heat, e. g., against
continuous intense sunlight, fire, water, and
moisture. Danger of explosion.
In case of damage and improper use of the battery,
vapours may be emitted. Ventilate the area and seek
medical help in case of complaints. The vapours can
irritate the respiratory system.
Use the battery only in conjunction with your Ramset
product. This measure alone protects the battery against
dangerous overload.
The battery can be damaged by pointed objects such
as nails or screwdrivers or by force applied externally.
An internal short circuit can occur and the battery can
burn, smoke, explode or overheat.
OBJ_BUCH-3456-001.book Page 23 Tuesday, November 14, 2017 1:42 PM

Angle Grinder 18V Owners Manual
- 08 -
24 | English
1 609 92A 47F | (14.11.17) Bosch Power Tools
Product Description and
Specifications
Read all safety warnings and all instruc-
tions. Failure to follow the warnings and in-
structions may result in electric shock, fire
and/or serious injury.
Product Features
The numbering of the product features refers to the illustra-
tion of the machine on the graphics page.
1 Unlocking lever for protection guard
2 Direction-of-rotation arrow on housing
3 Spindle lock button
4 On/Off switch
5 Battery*
6 Battery release button*
7 Auxiliary handle
8 Protection guard for grinding
9 Hub flange with O-ring
10 Grinding Disc*
11 Quick-clamping nut with bar
12 Carbide grinding head*
13 Protection guard for cutting*
14 Cutting disc*
15 Handle (insulated gripping surface)
16 Grinding spindle
17 Hand guard*
18 Rubber sanding pad*
19 Abrasive disc*
20 Round nut*
21 Cup brush*
22 Diamond core cutter*
23 Button for charge indicator
24 Battery charge indicator
25 Cutting guide with dust extraction protection guard *
26 Diamond cutting disc*
*Accessories shown or described are not part of the standard de-
livery scope of the product.
While reading the operating instructions, unfold the graphics
page for the machine and leave it open.
Intended Use
The machine is intended for cutting, roughing and brushing of
metal and stone materials without the use of water.
For cutting with bonded abrasives, a special cutting guard
(accessory) must be used.
When cutting in stone, provide for sufficient dust extraction.
With approved sanding tools, the machine can be used for
sanding with sanding discs.
The light of this power tool is intended to illuminate the power
tool’s direct area of working operation and is not suitable for
household room illumination.
Technical Data
Angle Grinder
*depending on the battery pack being used
** limited performance at temperatures <0 °C
OBJ_BUCH-3456-001.book Page 24 Tuesday, November 14, 2017 1:42 PM
CBAGR18
English | 25
Bosch Power Tools 1 609 92A 47F | (14.11.17)
Rated voltage V= 18
Rated speed min-1 9000
Grinding disc diameter, max. mm 125
Thread of grinder spindle M 14
Thread length (max.) of grinder spindle mm 22
Kickback stop
Restart Protection
Speed preselection –
Weight according to EPTA-Procedure
01:2014
– with vibration-damping auxiliary handle
– with standard-auxiliary handle
kg
kg
2.6 – 2.8*
2.4 – 2.6*
Permitted ambient temperature
– during charging
– during operation** and during storage
°C
°C
0...+45
–20...+50
Recommended batteries
CBBAT18...
Recommended chargers CBCHR18
Angle Grinder CBAGR18
*depending on the battery pack being used
** limited performance at temperatures <0 °C
OBJ_BUCH-3456-001.book Page 25 Tuesday, November 14, 2017 1:42 PM
Ru n -out brake
24 | English
1 609 92A 47F | (14.11.17) Bosch Power Tools
Product Description and
Specifications
Read all safety warnings and all instruc-
tions. Failure to follow the warnings and in-
structions may result in electric shock, fire
and/or serious injury.
Product Features
The numbering of the product features refers to the illustra-
tion of the machine on the graphics page.
1 Unlocking lever for protection guard
2 Direction-of-rotation arrow on housing
3 Spindle lock button
4 On/Off switch
5 Battery*
6 Battery release button*
7 Auxiliary handle
8 Protection guard for grinding
9 Hub flange with O-ring
10 Grinding Disc*
11 Quick-clamping nut with bar
12 Carbide grinding head*
13 Protection guard for cutting*
14 Cutting disc*
15 Handle (insulated gripping surface)
16 Grinding spindle
17 Hand guard*
18 Rubber sanding pad*
19 Abrasive disc*
20 Round nut*
21 Cup brush*
22 Diamond core cutter*
23 Button for charge indicator
24 Battery charge indicator
25 Cutting guide with dust extraction protection guard *
26 Diamond cutting disc*
*Accessories shown or described are not part of the standard de-
livery scope of the product.
While reading the operating instructions, unfold the graphics
page for the machine and leave it open.
Intended Use
The machine is intended for cutting, roughing and brushing of
metal and stone materials without the use of water.
For cutting with bonded abrasives, a special cutting guard
(accessory) must be used.
When cutting in stone, provide for sufficient dust extraction.
With approved sanding tools, the machine can be used for
sanding with sanding discs.
The light of this power tool is intended to illuminate the power
tool’s direct area of working operation and is not suitable for
household room illumination.
Technical Data
Angle Grinder
*depending on the battery pack being used
** limited performance at temperatures <0 °C
OBJ_BUCH-3456-001.book Page 24 Tuesday, November 14, 2017 1:42 PM
CBAGR18

- 09 -
Angle Grinder18V Owners Manual
24 | English
1 609 92A 47F | (14.11.17) Bosch Power Tools
Product Description and
Specifications
Read all safety warnings and all instruc-
tions. Failure to follow the warnings and in-
structions may result in electric shock, fire
and/or serious injury.
Product Features
The numbering of the product features refers to the illustra-
tion of the machine on the graphics page.
1 Unlocking lever for protection guard
2 Direction-of-rotation arrow on housing
3 Spindle lock button
4 On/Off switch
5 Battery*
6 Battery release button*
7 Auxiliary handle
8 Protection guard for grinding
9 Hub flange with O-ring
10 Grinding Disc*
11 Quick-clamping nut with bar
12 Carbide grinding head*
13 Protection guard for cutting*
14 Cutting disc*
15 Handle (insulated gripping surface)
16 Grinding spindle
17 Hand guard*
18 Rubber sanding pad*
19 Abrasive disc*
20 Round nut*
21 Cup brush*
22 Diamond core cutter*
23 Button for charge indicator
24 Battery charge indicator
25 Cutting guide with dust extraction protection guard *
26 Diamond cutting disc*
*Accessories shown or described are not part of the standard de-
livery scope of the product.
While reading the operating instructions, unfold the graphics
page for the machine and leave it open.
Intended Use
The machine is intended for cutting, roughing and brushing of
metal and stone materials without the use of water.
For cutting with bonded abrasives, a special cutting guard
(accessory) must be used.
When cutting in stone, provide for sufficient dust extraction.
With approved sanding tools, the machine can be used for
sanding with sanding discs.
The light of this power tool is intended to illuminate the power
tool’s direct area of working operation and is not suitable for
household room illumination.
Technical Data
Angle Grinder
*depending on the battery pack being used
** limited performance at temperatures <0 °C
OBJ_BUCH-3456-001.book Page 24 Tuesday, November 14, 2017 1:42 PM
CBAGR18
English | 25
Bosch Power Tools 1 609 92A 47F | (14.11.17)
Rated voltage V= 18
Rated speed min-1 9000
Grinding disc diameter, max. mm 125
Thread of grinder spindle M 14
Thread length (max.) of grinder spindle mm 22
Kickback stop
Restart Protection
Speed preselection –
Weight according to EPTA-Procedure
01:2014
– with vibration-damping auxiliary handle
– with standard-auxiliary handle
kg
kg
2.6 – 2.8*
2.4 – 2.6*
Permitted ambient temperature
– during charging
– during operation** and during storage
°C
°C
0... +45
–20...+50
Recommended batteries
CBBAT18...
Recommended chargers CBCHR18
Angle Grinder CBAGR18
*depending on the battery pack being used
** limited performance at temperatures <0 °C
OBJ_BUCH-3456-001.book Page 25 Tuesday, November 14, 2017 1:42 PM
Ru n -out brake
26 | English
1 609 92A 47F | (14.11.17) Bosch Power Tools
Noise/Vibration Information
Sound emission values determined
according to EN 60745-2-3.
Typically the A-weighted noise levels of the
product are
Sound pressure level
Sound power level
Uncertainty K
Wear hearing protection!
dB(A)
dB(A)
dB
79
90
3
Vibration total values ah (triax vector sum)
and uncertainty K determined according to
EN 60745-2-3:
Surface grinding:
ah
K
Disk sanding:
ah
K
m/s2
m/s2
m/s2
m/s2
6.0
1.5
3.5
1.5
OBJ_BUCH-3456-001.book Page 26 Tuesday, November 14, 2017 1:42 PM
24 | English
1 609 92A 47F | (14.11.17) Bosch Power Tools
Product Description and
Specifications
Read all safety warnings and all instruc-
tions. Failure to follow the warnings and in-
structions may result in electric shock, fire
and/or serious injury.
Product Features
The numbering of the product features refers to the illustra-
tion of the machine on the graphics page.
1 Unlocking lever for protection guard
2 Direction-of-rotation arrow on housing
3 Spindle lock button
4 On/Off switch
5 Battery*
6 Battery release button*
7 Auxiliary handle
8 Protection guard for grinding
9 Hub flange with O-ring
10 Grinding Disc*
11 Quick-clamping nut with bar
12 Carbide grinding head*
13 Protection guard for cutting*
14 Cutting disc*
15 Handle (insulated gripping surface)
16 Grinding spindle
17 Hand guard*
18 Rubber sanding pad*
19 Abrasive disc*
20 Round nut*
21 Cup brush*
22 Diamond core cutter*
23 Button for charge indicator
24 Battery charge indicator
25 Cutting guide with dust extraction protection guard *
26 Diamond cutting disc*
*Accessories shown or described are not part of the standard de-
livery scope of the product.
While reading the operating instructions, unfold the graphics
page for the machine and leave it open.
Intended Use
The machine is intended for cutting, roughing and brushing of
metal and stone materials without the use of water.
For cutting with bonded abrasives, a special cutting guard
(accessory) must be used.
When cutting in stone, provide for sufficient dust extraction.
With approved sanding tools, the machine can be used for
sanding with sanding discs.
The light of this power tool is intended to illuminate the power
tool’s direct area of working operation and is not suitable for
household room illumination.
Technical Data
Angle Grinder
*depending on the battery pack being used
** limited performance at temperatures <0 °C
OBJ_BUCH-3456-001.book Page 24 Tuesday, November 14, 2017 1:42 PM
CBAGR18

Angle Grinder 18V Owners Manual
- 010 -
English | 27
Bosch Power Tools 1 609 92A 47F | (14.11.17)
The vibration level given in this information sheet has been
measured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with anoth-
er. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main ap-
plications of the tool. However if the tool is used for different
applications, with different accessories or insertion tools or is
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibration should also
take into account the times when the tool is switched off or
when it is running but not actually doing the job. This may sig-
nificantly reduce the exposure level over the total working
period.
Identify additional safety measures to protect the operator
from the effects of vibration such as: maintain the tool and the
accessories, keep the hands warm, organisation of work pat-
terns.
Fitting
Charging the Battery
Use only the battery chargers listed on the accessories
page. Only these battery chargers are matched to the lith-
ium-ion battery of your power tool.
Note: The battery supplied is partially charged. To ensure full
capacity of the battery, completely charge the battery in the
battery charger before using your power tool for the first time.
The lithium-ion battery can be charged at any time without re-
ducing its service life. Interrupting the charging procedure
does not damage the battery.
The lithium-ion battery is protected against deep discharging
by the “Electronic Cell Protection (ECP)”. When the battery is
empty, the machine is switched off by means of a protective
circuit: The inserted tool no longer rotates.
Do not continue to press the On/Off switch after the
machine has been automatically switched off. The bat-
tery can be damaged.
Follow the instructions on correct disposal.
Removing the battery
The battery 5 is equipped with two locking levels that should
prevent the battery from falling out when pushing the
battery unlocking button 6 unintentionally. As long as the
battery is inserted in the power tool, it is held in position by
means of a spring.
To remove the battery 5, press the unlocking button 6 and
pull out the battery toward the front. Do not exert any force.
OBJ_BUCH-3456-001.book Page 27 Tuesday, November 14, 2017 1:42 PM

- 011 -
Angle Grinder18V Owners Manual
English | 27
Bosch Power Tools 1 609 92A 47F | (14.11.17)
The vibration level given in this information sheet has been
measured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with anoth-
er. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main ap-
plications of the tool. However if the tool is used for different
applications, with different accessories or insertion tools or is
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibration should also
take into account the times when the tool is switched off or
when it is running but not actually doing the job. This may sig-
nificantly reduce the exposure level over the total working
period.
Identify additional safety measures to protect the operator
from the effects of vibration such as: maintain the tool and the
accessories, keep the hands warm, organisation of work pat-
terns.
Fitting
Charging the Battery
Use only the battery chargers listed on the accessories
page. Only these battery chargers are matched to the lith-
ium-ion battery of your power tool.
Note: The battery supplied is partially charged. To ensure full
capacity of the battery, completely charge the battery in the
battery charger before using your power tool for the first time.
The lithium-ion battery can be charged at any time without re-
ducing its service life. Interrupting the charging procedure
does not damage the battery.
The lithium-ion battery is protected against deep discharging
by the “Electronic Cell Protection (ECP)”. When the battery is
empty, the machine is switched off by means of a protective
circuit: The inserted tool no longer rotates.
Do not continue to press the On/Off switch after the
machine has been automatically switched off. The bat-
tery can be damaged.
Follow the instructions on correct disposal.
Removing the battery
The battery 5 is equipped with two locking levels that should
prevent the battery from falling out when pushing the
battery unlocking button 6 unintentionally. As long as the
battery is inserted in the power tool, it is held in position by
means of a spring.
To remove the battery 5, press the unlocking button 6 and
pull out the battery toward the front. Do not exert any force.
OBJ_BUCH-3456-001.book Page 27 Tuesday, November 14, 2017 1:42 PM

Angle Grinder 18V Owners Manual
- 012 -
28 | English
1 609 92A 47F | (14.11.17) Bosch Power Tools
Battery Charge
Indicator
(
see figureA)
The three green LEDs of
the battery charge indicator 24
indicate the charge condition of the battery
5. For safety
reasons
, it is only possible to check the state of charge
when the
power tool is at a standstill.
Press bu
tton 23 to display the state of charge.
This is also
possible when the battery 5 is removed.
When no LED
lights up after pushing button 23, then the bat-
tery is defective and
must be replaced.
Protection Guard for Grinding
Place the protective guard 8 on
the power tool’s holding fixture
until the protection guard’s cod-
ing lugs line up with the holding
fixture. When doing so, press and
hold the unlocking lever 1.
Press the protective guard 8 on-
to the spindle collar until the
shoulder of the protection guard
is seated against the flange of the
machine, and turn the protection
guard until it can clearly be heard
to engage.
Adjust the position of the protec-
tive guard 8 to the requirements
of the work process. For
this, press the release lever 1 up-
ward
and turn the protective guard 8 to the required posi-
tion.
Always adjust the protective guard 8 in such a manner that
all 3 red cams of release lever 1 engage into the
corresponding notches of the protection guard 8.
Adjust the protective guard 8 in such a manner that
sparking is prevented in the direction of the operator.
The protective guard 8 may be turned only upon actu-
ation of the release lever 1! Otherwise the power tool
may not continue to be used under any circumstances
and must be taken to an after-sales service agent.
Note: The encoding keys on the protection guard 8 ensure
that only a protection guard that fits the machine type can be
mounted.
Protective Guard for Cutting
For cutting with bonded abrasives, always use the
protective guard for cutting 13.
Provide for sufficient dust extraction when cutting
stone.
The protection guard for cutting 13 is mounted in the same
manner as the protection guard for grinding 8.
Extraction Guard for cutting with a guide block
The cutting guide with dust extraction protection guard 25
is
mounted in the same manner as the protection guard for
grinding 8.
Side Handle
Do not operate your power tool
without the side handle 7.
Screw the side handle 7 on the right or left of the machine
head depending on the working method.
Vibration-dampening Auxiliary Handle
The vibration-dampening auxiliary handle reduces the vibra-
tions, making operation more comfortable and secure.
Do not make any alterations to the auxiliary handle.
Do not continue to use an auxiliary handle if it is damaged.
LED Capacity
Continuous lighting 3 x green ≥2/3
Continuous lighting 2 x green ≥1/3
Continuous lighting 1 x green < 1/3
Flashing light 1 x green Reserve
OBJ_BUCH-3456-001.book Page 28 Tuesday, November 14, 2017 1:42 PM
Fitting Protective Equipment
u
Remove the battery from the power tool before carry-
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
Note:
If the grinding disc breaks during operation or the
holding fixtures on the protective guard/power tool become
damaged, the power tool must be sent to the after-sales ser-
vice immediately; see the "After-sales service and advice on
using products" section for addresses.
Hand Guard
For operations with the rubber sanding pad 18 or
with the cup brush/wheel brush/flap disc, always
mount the hand guard 17.
The hand guard 17 is fastened with the auxiliary handle 7.
Fitting The Abrasive Tools
Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
Clean the grinding spindle 16 and all parts to be mounted.
For clamping and loosening the grinding tools, lock the
grind-
er spindle with the spindle lock button 3.
Actuate the spindle lock button only when the grinder
spindle is at a standstill.
Otherwise, the machine may be-
come damaged.
English | 29
OBJ_BUCH-3456-001.book Page 29 Tuesday, November 14, 2017 1:42 PM
Grinding/Cutting Disc
Pay attention to the dimensions of the abrasive tools. The
diameter of the hole must match that of the hub flange. Do
not use an adapter or reducer.
When using diamond cutting discs, ensure that the arrow in-
dicating the direction of rotation on the diamond cutting disc
matches the direction of rotation of the power tool (see the
direction of rotation arrow on the machine head).
See the graphics page for fitting instructions.
Use the quick-clamping nut (11) to secure the grinding/cut-
ting disc without the need for additional tools.
Only use the quick-clamping nut (11) for grinding/cutting
discs up to a maximum diameter of 150mm.
uThe quick-clamping nut (11) may be used only for
grinding or cutting discs.
uOnly use quick-clamping nuts (11) that are in good
working order and not damaged.
uWhen screwing on, make sure that the printed side of
the quick-clamping nut (11) is not facing the grinding
disc.
uAlways secure a grinding/cutting disc using only the
quick-clamping nut (11) supplied.
Press the spindle lock but-
ton (3) to lock the grinding
spindle. To tighten the
quick-clamping nut (11),
fold up the bar and turn the
quick-clamping nut firmly
clockwise. Then fold down
the bar to secure the quick-
clamping nut. It is not suf-
ficient to tighten the disc
along the edge.
Quick-clamping nuts (11)
that are properly secured
and not damaged can be re-
moved by hand. To do this,
fold up the bar and turn the
quick-clamping nut firmly
anticlockwise. If the quick-
clamping nut is stuck, do
not attempt to loosen it with
a tool – always use a two-
pin spanner.
After fitting the hub flange
and the grinding/cutting
disc, the free thread length
of the grinding spindle must
be at least 4mm.
Ensure that the abrasive
tool is firmly seated, so that
it does not twist away from
the spindle in the runout of the power tool.
A plastic part (O-ring) is fitted around the
cent-ring collar in the hub flange (9). If the O-
ring is missing or damaged, the hub flange
(9) must be replaced before operation can re-
sume.
uAfter fitting the abrasive tool, check that the abrasive
tool is fitted correctly and can turn freely before
switching on the power tool. Make sure that the abras-
ive tool does not brush against the protective guard or
other parts.
Flap disc
uAlways fit the hand guard (17) when working with the
flap disc.
Rubber Sanding Pad
uAlways fit the hand guard (17) when working with the
rubber sanding pad (18).
See the graphics page for fitting instructions.
Slide the rubber sanding pad (18) onto the grinding spindle
(16).
Press the sanding sheet (19) firmly onto the underside of
the rubber sanding pad (18).
Screw on the round nut (20) and tighten with a two-pin
spanner.
Cup brush/disc brush
uAlways fit the hand guard (17) when working with the
cup brush or disc brush.
See the graphics page for fitting instructions.
The cup brush/disc brush must be screwed onto the grinding
spindle until it rests firmly against the grinding spindle flange
at the end of the grinding spindle thread. Tighten the cup
brush/disc brush with an open-ended spanner.
Carbide Grinding Head
uA grinding head may be used only with a suitable pro-
tective guard.

- 013 -
Angle Grinder18V Owners Manual
English | 29
OBJ_BUCH-3456-001.book Page 29 Tuesday, November 14, 2017 1:42 PM
Grinding/Cutting Disc
Pay attention to the dimensions of the abrasive tools. The
diameter of the hole must match that of the hub flange. Do
not use an adapter or reducer.
When using diamond cutting discs, ensure that the arrow in-
dicating the direction of rotation on the diamond cutting disc
matches the direction of rotation of the power tool (see the
direction of rotation arrow on the machine head).
See the graphics page for fitting instructions.
Use the quick-clamping nut (11) to secure the grinding/cut-
ting disc without the need for additional tools.
Only use the quick-clamping nut (11) for grinding/cutting
discs up to a maximum diameter of 150mm.
uThe quick-clamping nut (11) may be used only for
grinding or cutting discs.
uOnly use quick-clamping nuts (11) that are in good
working order and not damaged.
uWhen screwing on, make sure that the printed side of
the quick-clamping nut (11) is not facing the grinding
disc.
uAlways secure a grinding/cutting disc using only the
quick-clamping nut (11) supplied.
Press the spindle lock but-
ton (3) to lock the grinding
spindle. To tighten the
quick-clamping nut (11),
fold up the bar and turn the
quick-clamping nut firmly
clockwise. Then fold down
the bar to secure the quick-
clamping nut. It is not suf-
ficient to tighten the disc
along the edge.
Quick-clamping nuts (11)
that are properly secured
and not damaged can be re-
moved by hand. To do this,
fold up the bar and turn the
quick-clamping nut firmly
anticlockwise. If the quick-
clamping nut is stuck, do
not attempt to loosen it with
a tool – always use a two-
pin spanner.
After fitting the hub flange
and the grinding/cutting
disc, the free thread length
of the grinding spindle must
be at least 4mm.
Ensure that the abrasive
tool is firmly seated, so that
it does not twist away from
the spindle in the runout of the power tool.
A plastic part (O-ring) is fitted around the
cent-ring collar in the hub flange (9). If the O-
ring is missing or damaged, the hub flange
(9) must be replaced before operation can re-
sume.
uAfter fitting the abrasive tool, check that the abrasive
tool is fitted correctly and can turn freely before
switching on the power tool. Make sure that the abras-
ive tool does not brush against the protective guard or
other parts.
Flap disc
uAlways fit the hand guard (17) when working with the
flap disc.
Rubber Sanding Pad
uAlways fit the hand guard (17) when working with the
rubber sanding pad (18).
See the graphics page for fitting instructions.
Slide the rubber sanding pad (18) onto the grinding spindle
(16).
Press the sanding sheet (19) firmly onto the underside of
the rubber sanding pad (18).
Screw on the round nut (20) and tighten with a two-pin
spanner.
Cup brush/disc brush
uAlways fit the hand guard (17) when working with the
cup brush or disc brush.
See the graphics page for fitting instructions.
The cup brush/disc brush must be screwed onto the grinding
spindle until it rests firmly against the grinding spindle flange
at the end of the grinding spindle thread. Tighten the cup
brush/disc brush with an open-ended spanner.
Carbide Grinding Head
uA grinding head may be used only with a suitable pro-
tective guard.

Angle Grinder 18V Owners Manual
- 014 -
30 | English
1 609 92A 47F | (14.11.17) Bosch Power Tools
Approved
Abrasive Tools
The permissible speed [min
-1] or the circumferential speed
[m/s] of the
grinding tools used must at least match the values
given
in the table.
Therefore,
observe the permissible rotational/circumferen-
tial speed
on the label of the grinding tool.
Rotating
the Machine Head
Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
The machine head can be
rotated with respect to
the machine housing in
90° steps. In this man-
ner, the On/Off switch
can be brought into a
more convenient position
for special working situa-
tions, e.g. for left-handed
persons.
Completely unscrew the
four screws. Rotate the
machine head carefully,
without removing it from the hous-
ing,
to the new position. Screw in and tighten the four screws
again.
Dust/Chip Extraction
Dust from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one’s health. Touching or breathing-in the dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
Avoid dust accumulation at the workplace. Dust can
easily ignite.
Operation
Start-up
Inserting the battery
Insert the charged battery 8 from the front into the base
of the
power tool until the battery is securely locked.
Switching On and Off
To start the power tool, push the On/Off switch 4 forwards.
To lock the On/Off switch 4, press the On/Off switch 4 down
at the front until it latches.
To switch off the power tool, release the On/Off switch 4 or,
if it is locked, briefly push down the back of the On/Off switch
4 and then release it.
To save energy, only switch the power tool on when using it.
Check abrasive tools before using. The abrasive tool
must be mounted properly and be able to move freely.
Carry out a test run for at least one minute with no
load.
Do not use damaged, out-of-centre or vibrating grinding
tools. Damaged grinding tools can burst
and cause injuries.
Kickback stop
If there is a sudden kickback in the power
tool, e. g. jamming in a separating cut, the
power supply to the motor will be interrupt-
ed electronically.
To restart the operation, switch the On/Off switch 4 to the
Off position and start the machine again.
Restart Protection
The restarting protection feature prevents uncontrolled restart-
ing of the machine after an interruption in the power supply.
To restart the operation, switch the On/Off switch 4 to the
Off position and start the machine again.
Impact shutdown
The integrated impact shutdown switches the power tool off
as soon as it hits the floor. T
To restart the operation, switch the On/Off switch 4 to the
Off position and start the machine again.
max.
[mm] [mm]
D b d [min-1][m/s]
115
125
22.2
22.2
9000
9000
80
80
115
125
–
–
9000
9000
80
80
75 30 M 14 9000 45
82 – M 14 9000 80
D
D
b
d
D
d
OBJ_BUCH-3456-001.book Page 30 Tuesday, November 14, 2017 1:42 PM
–
–
7
7

- 015 -
Angle Grinder18V Owners Manual
32 | English
1 609 92A 47F | (14.11.17) Bosch Power Tools
Practical
Advice
Exercise caution when cutting slots in structural walls;
see Section “Information on Structures”.
Clamp the workpiece if it does not remain stationary
due to its own weight.
Do not strain the machine so heavily that it comes to a
standstill.
After heavily straining the power tool, continue to run
it at no-load for several minutes to cool down the acces-
sory.
Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
Do not use the power tool with a cut-off stand.
When
the power tool is electrostatically charged, the built-in
electronic
control switches it off. To restart the power tool,
press the On/Off
switch 4 again.
Rough Grinding
Never use a cutting disc for roughing.
The best roughing results are achieved when setting the ma-
chine at an angle of 30° to 40°. Move the machine back and
forth with moderate pressure. In this manner, the workpiece
will not become too hot, does
not discolour and no grooves
are formed.
Flap Disc
With the flap disc (accessory),
curved surfaces and profiles
can be worked.
Flap discs have a considerably higher service life, lower noise
levels and lower sanding temp
eratures than conventional
sanding sheets.
Cutting Metal
For cutting with bonded abrasives, always use the
protective guard for cutting 13.
When cutting, work with modera
te feed, adapted to the mate-
rial being cut. Do not exert pressure onto the cutting disc, tilt
or oscillate the machine.
Do not reduce the speed of running down cutting discs by ap-
plying sideward pressure.
The machine must al-
ways work in an up-
grinding motion. Other-
wise, the danger exists
of it being pushed un-
controlled out of the
cut.
When cutting profiles
and square bar, it is best
to start at the smallest
cross section.
Cutting Stone (see figure B)
Provide for sufficient dust extraction when cutting
stone.
Wear a dust respirator.
The machine may be used only for dry cutting/grinding.
For cutting stone, it is best to use a diamond cutting disc.
When using the cutting guide with dust extraction protection
guard 25, the vacuum cleaner must be approved for vacuum-
ing masonry dust. Suitable vacuum cleaners are available
from Bosch.
Switch on the machine
and place the front part
of the cutting guide on
the workpiece. Slide the
machine with moderate
feed, adapted to the ma-
terial to be worked.
For cutting especially hard material, e. g., concrete with high
pebble content, the diamond cutting disc can overheat and
become damaged as a result. This is clearly indicated by cir-
cular sparking, rotating with the diamond cutting disc.
In this case, interrupt the cutting process and allow the dia-
mond cutting disc to cool by running the machine for a short
time at maximum speed with no load.
Noticeably decreasing work progress and circular sparking
are indications of a diamond cutting disc that has become
dull. Briefly cutting into abrasive material (e. g. lime-sand
brick) can resharpen the disc again.
OBJ_BUCH-3456-001.book Page 32 Tuesday, November 14, 2017 1:42 PM

Angle Grinder 18V Owners Manual
- 016 -
English | 33
Bosch Power Tools 1 609 92A 47F | (14.11.17)
Recommendations for Optimal Handling of the Battery
Protect the battery against moisture and water.
Store the battery only within a temperature range between
–20 °C and 50 °C. As an example, do not leave the battery in
the car in summer.
Occasionally clean the venting slots of the battery using a soft,
clean and dry brush.
A significantly reduced working period after charging indi-
cates that the battery is used and must be replaced.
Observe the notes for disposal.
Maintenance and Service
Maintenance and Cleaning
Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
For safe and proper working, always keep the machine
and ventilation slots clean.
Please store and handle the accessories carefully.
After-sales Service and Application Service
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts.
ramsetreid Postal:
Australia:
P.O. Box 192, Croydon, Victoria 3136
1 Ramset Drive, Chirnside Park, Victoria 3116
Customer Service Center Inside Australia:
Phone: 1300 780 063
Fax: 1300 780 064
New Zealand:
Inside New Zealand:
Phone: 0800 RAMSET (726738)
Fax: (0800) 428570
Outside AU and NZ:
Phone: +61 3 9726 62
www.ramset.com.au
Transport
The contained lithium-ion batteries are subject to the
Danger-ous Goods Legislation requirements. The user can
transport the batteries by road without further
requirements.
When being transported by third parties (e.g.: air transport or
forwarding agency), special requirements on packaging and
labelling must be observed. For preparation of the item being
shipped, consulting an expert for hazardous material is re-
quired.
Dispatch batteries only when the housing is undamaged.
Tape or mask off open contacts and pack up the battery in
such a manner that it cannot move around in the packaging.
OBJ_BUCH-3456-001.book Page 33 Tuesday, November 14, 2017 1:42 PM
1 609 92A 47F | (14.11.17) Bosch Power Tools
34 |
Please also observe possibly more detailed national regula-
tions.
Disposal
The machine, rechargeable batteries, accessories
and packaging should be sorted for environmental-
friendly recycling.
Do not dispose of power tools and batteries/re-
chargeable batteries into household waste!
OBJ_BUCH-3456-001.book Page 34 Tuesday, November 14, 2017 1:42 PM

- 017 -
Angle Grinder18V Owners Manual
English | 33
Bosch Power Tools 1 609 92A 47F | (14.11.17)
Recommendations for Optimal Handling of the Battery
Protect the battery against moisture and water.
Store the battery only within a temperature range between
–20 °C and 50 °C. As an example, do not leave the battery in
the car in summer.
Occasionally clean the venting slots of the battery using a soft,
clean and dry brush.
A significantly reduced working period after charging indi-
cates that the battery is used and must be replaced.
Observe the notes for disposal.
Maintenance and Service
Maintenance and Cleaning
Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
For safe and proper working, always keep the machine
and ventilation slots clean.
Please store and handle the accessories carefully.
After-sales Service and Application Service
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts.
ramsetreid Postal:
Australia:
P.O. Box 192, Croydon, Victoria 3136
1 Ramset Drive, Chirnside Park, Victoria 3116
Customer Service Center Inside Australia:
Phone: 1300 780 063
Fax: 1300 780 064
New Zealand:
Inside New Zealand:
Phone: 0800 RAMSET (726738)
Fax: (0800) 428570
Outside AU and NZ:
Phone: +61 3 9726 62
www.ramset.com.au
Transport
The contained lithium-ion batteries are subject to the
Danger-ous Goods Legislation requirements. The user can
transport the batteries by road without further
requirements.
When being transported by third parties (e.g.: air transport or
forwarding agency), special requirements on packaging and
labelling must be observed. For preparation of the item being
shipped, consulting an expert for hazardous material is re-
quired.
Dispatch batteries only when the housing is undamaged.
Tape or mask off open contacts and pack up the battery in
such a manner that it cannot move around in the packaging.
OBJ_BUCH-3456-001.book Page 33 Tuesday, November 14, 2017 1:42 PM
1 609 92A 47F | (14.11.17) Bosch Power Tools
34 |
Please also observe possibly more detailed national regula-
tions.
Disposal
The machine, rechargeable batteries, accessories
and packaging should be sorted for environmental-
friendly recycling.
Do not dispose of power tools and batteries/re-
chargeable batteries into household waste!
OBJ_BUCH-3456-001.book Page 34 Tuesday, November 14, 2017 1:42 PM
Warranty
This Ramset™ tool is warranted to the original
purchaser only to be free from defects in material and
workmanship. Subject to certain exceptions Ramset™
will repair replace any part of the tool which, after ex-
amination, is determined by Ramset™ to be defective in
material or workmanship for a period of two (2) years*
after the date of purchase.
Return the tool and a copy of proof of purchase to the
Ramset™ National Service Centre, freight prepaid and
insured, as requested for this warranty to be effective.
This warranty does not apply to damage that Ramset™
determines to be from repairs made or attempted by
anyone other than Ramset™ authorized personnel,
misuse, alterations, abuse, normal wear and tear, lack
of maintenance, or accidents.
*Statutory rights for goods and purchases as
a customer.
Australia
In addition to other rights and remedies that may be
available under law, our goods come with guarantees
that cannot be excluded under the Australian Consumer
Law. You are entitled to a replacement or refund for
a major failure and for compensation for any other
reasonable foreseeable loss or damage. You are also
entitled to have the goods repaired or replaced if the
goods fail to be of acceptable quality and the failure
does not amount to a major failure.
New Zealand
This warranty is supplemental to any other rights and
remedies you have under the Consumer Guarantees Act
1993 NZ, unless your purchase is made for commercial
purposes, in which case Ramset™ excludes all con-
sumer guarantees implied in the Consumer Guarantees
Act 1993 NZ in respect of your product.
Acceptance of the exclusive repair and replacement
remedies described herein is a condition of the contract
for the purchase of every Ramset™ product. If you do
not agree to this condition, you should not purchase
the product. In no event shall Ramset™ be liable for any
incidental, special, consequential or punitive damages,
or for any costs, attorney fees, expenses, losses or
delays alleged to be as a consequence of any damage
to, failure of, or defect in any product including, but not
limited to, any claims for loss of profits.
This warranty is exclusive and in lieu of all other
warranties or conditions, written or oral, expressed or
implied. Without limiting the generality of the foregoing,
Ramset™ disclaims any implied warranty of merchant-
ability or fitness for a particular use or purpose, and all
other warranties.



Ramset™ Australia
Customer Service Centre
Tel: 1300 780 063
Web ramset.com.au
customer service
Ramset™ New Zealand
Customer Service Centre
Tel: 0800 RAMSET (726738)
Web: ramset.co.nz
Table of contents
Other RAMSET Grinder manuals