Erbauer ERB666GRD User manual

750W 115mm ANGLE GRINDER ERB666GRD
ERB666GRD

Original Instructions
(Version 2.0)

750W 115mm ANGLE GRINDER ERB666GRD
GUARANTEE
This product carries a 2 year guarantee. If your product develops a fault within this
period, you should in the rst instance contact the retailer where the item was purchased.
This guarantee specically excludes losses caused due to:
- Fair wear and tear
- Misuse or abuse
- Lack of routine maintenance
- Failure of consumable items (such as batteries)
- Accidental damage
- Cosmetic damage
- Failure to follow manufacturer’s guidelines
- Loss of use of the goods
This guarantee does not affect your statutory rights. This guarantee is only valid in the UK.
For further technical advice, spare parts or repair service (outside of guarantee) please con-
tact the customer helpline number on 0345 607 6380.
Congratulations on your purchase of a quality power tool from Erbauer (UK) Ltd. This
product should give you reliable service but for your peace of mind this
power tool does carry a 2 year guarantee, the terms of which are detailed below.
If this product develops a fault within the guarantee period contact your retailer.
Please retain this handbook in case you need to refer to safety, care or guarantee
information in the future.

GENERAL SAFETY INSTRUCTIONS
WARNING! Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may result in
electric shock, re 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.
1. Work area safety
a. Keep work area clean and well lit. Cluttered or dark areas
invite accidents.
b. Do not operate power tools in explosive atmospheres,
such as in the presence of ammable liquids, gases or dust.
Power tools create sparks which may ignite the dust or fumes.
c. Keep children and bystanders away while operating a
power tool. Distractions can cause you to lose control.
2. Electrical safety
a. 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. Unmodied plugs and matching outlets
will reduce risk of electric shock.
b. 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.
c. Do not expose power tools to rain or wet conditions. Water
entering a power tool will increase the risk of electric shock.
d. 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.
e. When operating a power tool outdoors, use an extension
cord suitable for outdoor use. Use of a cord suitable for outdoor
use reduces the risk of electric shock.
f. If operating a power tool in a damp location is unavoidable,
use a residual current device (RCD) protected supply. Use of

750W 115mm ANGLE GRINDER ERB666GRD
an RCD reduces the risk of electric shock.
3. Personal safety
a. 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 inuence of drugs, alcohol
or medication. A moment of inattention while operating power
tools may result in serious personal injury.
b. 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 injuries.
c. 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 nger on the switch or energising power tools that
have the switch on invites accidents.
d. Remove any adjusting key or wrench before turning the
power tool on.
A wrench or a key left attached to a rotating part of the power tool
may result in personal injury.
e. Do not overreach. Keep proper footing and balance
at all times. This enables better control of the power tool in
unexpected situations.
f. Dress properly. Do not wear loose clothing or jewellery.
Keep your hair, clothing and gloves away from moving parts.
Loose clothes, jewellery or long hair can be caught in moving
parts.
g. If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used. Use of dust collection can
reduce dust-related hazards.
4. Power tool use and care
a. 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.
b. 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.
c. 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.
d. 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.
e. Maintain power tools. Check for misalignment or binding
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.
f. Keep cutting tools sharp and clean. Properly maintained
cutting tools with sharp cutting edges are less likely to bind and
are easier to control.
g. Use the power tool, accessories and tool bits etc. in
accordance 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.
5. Service
a) Have your power tool serviced by a qualied repair
person using only identical replacement parts. This will
ensure that the safety of the power tool is maintained.
ADDITIONAL SAFETY INSTRUCTIONS FOR YOUR ANGLE GRINDER
SAFETY WARNINGS COMMON FOR GRINDING OR ABRASIVE
CUTTING-OFF OPERATIONS:
a) This power tool is intended to function as a grinder or cut-
off tool. Read all safety warnings, instructions, illustrations
and specications provided with this power tool. Failure to

750W 115mm ANGLE GRINDER ERB666GRD
follow all instructions listed below may result in electric shock, re
and/or serious injury.
b) Operations such as sanding, wire brushing, 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.
c) Do not use accessories which are not specically designed
and recommended by the tool manufacturer. Just because
the accessory can be attached to your power tool, it does not
assure safe operation.
d) The rated speed of the accessory must be at least equal to
the maximum speed marked on the power tool. Accessories
running faster than their rated speed can break and y apart.
e) The outside diameter and the thickness of your accessory
must be within the capacity rating of your power tool.
Incorrectly sized accessories cannot be adequately guarded or
controlled.
f) Threaded mounting of accessories must match the grinder
spindle thread. For accessories mounted by anges, the
arbour hole of the accessory must t the locating diameter
of the ange. 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.
g) Do not use a damaged accessory. Before each use inspect
the accessory such as abrasive wheels for chips and cracks,
backing pad for cracks, tear or excess wear. If power tool
or accessory is dropped, inspect for damage or install an
undamaged accessory. After inspecting and installing 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 minute. Damaged
accessories will normally break apart during this test time.
h) Wear personal protective equipment. Depending on
application, use face shield, safety goggles or safety
glasses. As appropriate, wear dust mask, hearing
protectors, gloves and workshop apron capable of stopping

small abrasive or workpiece fragments. The eye protection
must be capable of stopping ying debris generated by various
operations. The dust mask or respirator must be capable of
ltrating particles generated by your operation. Prolonged
exposure to high intensity noise may cause hearing loss.
i) 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 y away and cause injury beyond immediate area
of operation.
j) Hold power tool by insulated gripping surfaces only, when
performing an operation where the cutting accessory may
contact hidden wiring or its own cord. Cutting accessory
contacting a “live” wire may make exposed metal parts of the
power tool “live” and could give the operator an electric shock.
k) Position the cord clear of the spinning accessory. If you lose
control, the cord may be cut or snagged and your hand or arm
may be pulled into the spinning accessory.
l) Never lay the power tool down until the accessory has come
to a complete stop. The spinning accessory may grab the
surface and pull the power tool out of your control.
m) 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.
n) Regularly clean the power tool’s air vents. The motor’s fan will
draw the dust inside the housing and excessive accumulation of
powdered metal may cause electrical hazards.
o) Do not operate the power tool near ammable materials.
Sparks could ignite these materials.
p) Do not use accessories that require liquid coolants. Using
water or other liquid coolants may result in electrocution or shock.
q) Your hand must hold on the handle when you are working.
Always use the auxiliary handles supplied with the tool. Loss of
control can cause personal injury

750W 115mm ANGLE GRINDER ERB666GRD
Further safety instructions for all operations
Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or snagged rotating
wheel, backing pad, 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 accessory’s rotation at the point of the binding.
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 pinching. Abrasive wheels may also break under these
conditions.
Kickback is the result of power tool misuse and/or incorrect operating
procedures or conditions and can be avoided by taking proper
precautions as given below.
a) Maintain a rm grip on the power tool and position your
body and arm to allow you to resist kickback forces. Always
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.
b) Never place your hand near the rotating accessory.
Accessory may kickback over your hand.
c) 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.
d) Use special care when working corners, sharp edges etc.
Avoid bouncing and snagging the accessory. Corners,
sharp edges or bouncing have a tendency to snag the rotating
accessory and cause loss of control or kickback.
e) Do not attach a saw chain woodcarving blade or toothed
saw blade. Such blades create frequent kickback and loss of
control.

Additional safety instructions for grinding and cutting-off
operations
Safety Warnings Specic for Grinding and Abrasive Cutting-Off
Operations:
a) Use only wheel types that are recommended for your power
tool and the specic guard designed for the selected wheel.
Wheels for which the power tool was not designed cannot be
adequately guarded and are unsafe.
b) The grinding surface of 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.
c) 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 fragments and accidental contact
with wheel and sparks that could ignite clothing.
d) Wheels must be used only for recommended applications.
For example: do not grind with the side of cut-off wheel.
Abrasive cut-off wheels are intended for peripheral grinding, side
forces applied to these wheels may cause them to shatter.
e) Always use undamaged wheel anges that are of correct
size and shape for your selected wheel. Proper wheel
anges support the wheel thus reducing the possibility of wheel
breakage. Flanges for cut-off wheels may be different from
grinding wheel anges.
f) Do not use worn down wheels from larger power tools.
Wheel intended for larger power tool is not suitable for the higher
speed of a smaller tool and may burst.
Additional safety instructions for cutting-off operations
Additional Safety Warnings Specic for Abrasive Cutting-Off
Operations:
a) Do not “jam” the cut-off wheel or apply excessive pressure.
Do not attempt to make an excessive depth of cut.
Overstressing the wheel increases the loading and susceptibility

750W 115mm ANGLE GRINDER ERB666GRD
to twisting or binding of the wheel in the cut and the possibility of
kickback or wheel breakage.
b) 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.
c) When wheel is binding or when interrupting a cut for any
reason, switch off the power tool and hold the power 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 eliminate the cause of wheel binding.
d) Do not restart the cutting operation in the workpiece. Let
the wheel reach full speed and carefully reenter the cut. The
wheel may bind, walk up or kickback if the power tool is restarted
in the workpiece.
e) Support panels or any oversized workpiece to minimize the
risk of wheel pinching and kickback. Large workpieces 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.
f) Use extra caution when making a “pocket cut” into existing
walls or other blind areas. The protruding wheel may cut gas or
water pipes, electrical wiring or objects that can cause kickback.
ADDITIONAL SAFETY WARNING FOR CONSTRUCTION DUST
The updated Control of Substances Hazardous to Health Regulations 1st October 2012 now
also targets to reduce the risks associated with silica, wood and gypsum dusts.
Construction workers are one of the at-risk groups within this because of the dust that they
breathe: silica dust is not just a nuisance; it is a real risk to your lungs!
Silica is a natural mineral present in large amounts in things like sand, sandstone and
granite. It is also commonly found in many construction materials such as concrete and
mortar. The silica is broken into very ne dust (also known as Respirable Crystalline Silica or
RCS) during many common tasks such as cutting, drilling and grinding Breathing in very ne
particles of crystalline silica can lead to the development of:
Lung cancer Silicosis Chronic Obstructive Pulmonary Disorder (Chronic obstructive
pulmonary disease (COPD) And breathing in ne particles of wood dust can lead to the

development of Asthma The risk of lung disease is linked to people who regularly breathe
construction dust over a period of time, not on the odd occasion.
To protect the lung, the COSHH Regulations sets a limit on the amount of these dusts that
you can breathe (called a Workplace Exposure Limit or WEL) when averaged over a normal
working day. These limits are not a large amount of dust: when compared to a penny it is
tiny – like a small pinch of salt:
This limit is the legal maximum; the most you can breathe after the right controls have been
used.
How to reduce the amount of dust?
1 Reduce the amount of cutting by using the best sizes of building products.
2 Use a less powerful tool e.g. a block cutter instead of angle grinder.
3 Using a different method of work altogether – e.g. using a nail gun to direct fasten cable
trays instead of drilling holes rst.
Please always work with approved safety equipment, such as those dust masks that
specially designed to lter out microscopic particles and use the dust extraction facility at all
time.
For more information please see the HSE website:
http://www.hse.gov.uk/construction or http://www.hse.gov.uk/pubns/cis69.pdf
Warning: Some dust particles created by power sanding, sawing, grinding, drill
and other construction jobs contain chemicals known to cause cancer, birth
defects or other reproductive harm. Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks and cement and other masonry products.
• Arsenic and chromium from chemically treated timber.
Your risk from these exposures varies, depending upon how often you do this type of work.
To reduce your exposure to these chemicals:
• Work in a well-ventilated area.
• Work with approved safety equipment, such as those dust masks that are specially
designed to lter microscopic particles.
VIBRATION
The European Physical Agents (Vibration) Directive has been brought in to help reduce
hand arm vibration syndrome injuries to power tool users. The directive requires power
tool manufacturers and suppliers to provide indicative vibration test results to enable users
to make informed decisions as to the period of time a power tool can be used safely on a
daily basis and the choice of tool.
Further Advice can be found at www.hse.gov.uk
Vibration total values (triax vector sum) determined according to EN 60745:
Typical weighted vibration Vibration emission value ah,AG =9,136m/s²
Uncertainty K =1.5m/s²
The declared vibration emission value should be used as a minimum level and should be

750W 115mm ANGLE GRINDER ERB666GRD
used with the current guidance on vibration.
Calculating the actual period of the actual period off use can be difcult and the HSE
website has further information.
The declared vibration emission been measured in accordance with a standardised test
stated above and may be used to compare one tool with another tool.
The declared vibration emission value may also be used in a preliminary assessment of
exposure.
WARNING: The vibration emission value during actual use of the power tool can differ
from the declared value depending on the ways in which the tool is used dependant on
the following examples and other variations on how the tool is used:
How the tool is used and the materials being cut.
The tool being in good condition and well maintained
To use the correct accessory for the tool and ensure it is sharp and in good condition.
The tightness of the grip on the handles and if any anti vibration accessories are used.
And the tool is being used as intended by its design and these instructions.
This tool may cause hand-arm vibration syndrome if its use is not adequately
managed
WARNING: To be accurate, an estimation of exposure level in the actual conditions of
use should also take account of all parts of the operating cycle such as the times when
the tool is switched off and when it is running idle but not actually doing the job. This may
signicantly reduce the exposure level over the total working period.
Helping to minimize your vibration exposure risk.
Maintain this tool in accordance with these instructions and keep well lubricated (where
appropriate).
If the tool is to be used regularly then invest in anti vibration accessories.
Avoid using tools in temperatures of 10OC or less.
Plan your work schedule to spread any high vibration tool use across a number of days.
Health Surveillance
All employees should be part of an employer’s health surveillance scheme to help identity
any vibration related diseases at an early stage, prevent disease progression and help
employees stay in work.
Double insulation
The tool is double insulated. This means that all the external metal parts are
electrically insulated from the mains power supply. This is done by placing insulation
barriers between the electrical and mechanical components making it unnecessary for the
tool to be earthed.
Important note
Be sure the supply is the same as the voltage given on the rating plate. The tool is tted
with a two-core cable and plug.
Remove the mains plug from socket before carrying out, any adjustment or servicing.

To reduce the risk of injury, user must read instruction manual
Double insulation
Warning
Wear ear protection
Wear eye protection
Wear dust mask
Wear protective gloves
Waste electrical products must not be disposed of with household
waste. Please recycle where facilities exist. Check with your local
authorities or retailer for recycling advice.
SYMBOLS
yyWxx Manufacturing date code; Year of manufacturing (20yy) and week of
manufacturing (Wxx);

750W 115mm ANGLE GRINDER ERB666GRD
1
32
10
11
9
7
456
12
8

1. SPINDLE LOCK BUTTON
2. ON / OFF SWITCH
3. ANTI-VIBRATION AUXILIARY HANDLE
4. SPANNER
5. INNER FLANGE
6. OUTER FLANGE
7. CLAMP ADJUSTMENT SCREW
8. SPINDLE
9. GUARD CLAMPING LEVER
10. WHEEL GUARD FOR GRINDING
11. DISC*
12. WHEEL GUARD FOR CUTTING
* Not all the accessories illustrated or described are included in standard delivery.

750W 115mm ANGLE GRINDER ERB666GRD
Rated voltage 220-240V~50Hz
Rated input power 750W
Rated speed 11000/min
Protection class /II
Spindle thread M14
Disc size 115mm(4 1/2”)
Maximum diameter and thickness of the wheel 115 x 6mm
Disc bore 22.23mm
Machine weight 1.83Kg
NOISE INFORMATION
A weighted sound pressure: LpA: 89.7dB (A) KPA=3.0 dB (A)
A weighted sound power: LwA: 100.7dB (A) KWA=3.0 dB (A)
Wear ear protection when sound pressure is over 80dB(A)
ACCESSORIES
Auxiliary handle 1pc
Spanner 1pc
Wheel guard for cutting 1pc
Wheel guard for grinding 1pc
TECHNICAL DATA

OPERATING INSTRUCTIONS
Note: Before using the tool, read the
instruction book carefully.
INTENDED USE
The machine is intended for cutting, roughing and
brushing metal and stone materials without using
water. For cutting metal, a special protection guard
for cutting (accessory) must be used.
ASSEMBLY AND ADJUSTMENT
Mounting the Protective Devices
1. AUXILIARY HANDLE (See Fig 1).
For all work with the machine, the auxiliary
handle (3) must be mounted.
Screw the auxiliary handle (3) on the right or left
of the machine head depending on the working
method.
Do not make any alterations to the auxiliary handle. Do not continue to use
an auxiliary handle if it is damaged.
Mounting the Grinding Tools
Before any work on the machine itself, pull the
mains plug.
Grinding and cutting discs become very hot
while working; do not touch until they have
cooled.
1. Spindle lock button
Clean the grinder spindle and all parts to be
mounted. For clamping and loosening the grinding
tools, lock the grinder spindle (8) with the spindle
lock button (1).
Actuate the spindle lock button (1) only when
the grinder spindle is at a standstill!
2. Adjustable outer ange clamping (See Fig
2-1.2-2).
The outer ange (6) should be adjusted to suit
different disc thickness. For thinner cutting or
diamond discs the raised part of the outer ange
is tted facing away from the disc. For thicker
grinding discs the raised part of the outer ange is
tted facing towards the disc to provide improved
support for the disc hole. Always ensure your disc
is securely clamped.
Fig. 1
Fig. 2-1
Fig. 2-2
Fig. 3
Fig. 2-3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
15o-30o
8
Inner flange
Outer flange
Disc
Inner flange
Outer flange
Disc

750W 115mm ANGLE GRINDER ERB666GRD
3. Grinding/Cutting Disc(See Fig 2-3).
Pay attention to the dimensions of the grinding
disc. The mounting hole diameter must t
the inner ange (5) without play. Do not use
reducers or adapters.
When using a diamond cutting disc, take care that
the direction-of-rotation arrow on the diamond
cutting disc and the direction of rotation of the
machine (direction-of-rotation arrow on the
machine head) agree.
For mounting, see the Component list
illustration page.
Screw on the outer ange (6) and tighten with the
two-pin spanner (4).
Adjusting the protection guard
For work with grinding or cutting discs, the
wheel guard must be mounted.
Open the clamping lever (9). Place the wheel
guard (10/12) with coded projection into the coded
groove on the spindle of the machine head and
rotate to the required position (working position).
To fasten the wheel guard (10/12), close the
clamping lever and loosen the clamp adjustment
screw, if necessary.
The closed side of the wheel guard (10/12) must
always point to the operator.
Note: With the clamping lever (9) open the clamp
adjustment screw(7) can be adjusted to ensure the
guard is securely clamped after the clamping lever
(9) is nally closed.
Wheel Guard for Cutting
WARNING! For cutting metal, always work with the wheel guard for cutting (12).
For grinding, always work with the wheel guard for
grinding(10).
OPERATION
Operating Instructions
•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.
• Grinding and cutting discs become very hot while
working; do not touch until they have cooled.
• Pull the plug from the socket-outlet when not
using the machine. With the plug inserted and
mains voltage existing, the power tool still has low
Fig. 1
Fig. 2-1
Fig. 2-2
Fig. 3
Fig. 2-3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
15o-30o
8
Inner flange
Outer flange
Disc
Inner flange
Outer flange
Disc

power consumption even when it switched off.
(See Fig 4)
Starting Operation
To start the power tool, push the on/off switch (2)
forward.
To lock the on/off switch (2), press the on/off switch
(2) down at the front until it engages.
To switch off the power tool, release the on/off
switch (2) or, if it is locked, briey push down the
back of the on/off switch (2) and then release it.
(See Fig 5)
1. Hand grip areas
Always hold your angle grinder rmly with both
hands when operating (See Fig 6).
2. Rough Grinding
The best roughing results are achieved when
setting the machine at an angle of 15° to 30°.
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.
WARNING: Never use a cutting disc for
roughing.
3. Cutting(See Fig 7).
WARNING! For cutting metal, always work
with the wheel guard for cutting.
When cutting, do not press, tilt or oscillate the
machine. Work with moderate feed, adapted to the
material being cut.
Do not reduce the speed of running down cutting
discs by applying sideward pressure.
The direction in which the cutting is performed is
important.
The machine must always work in an up-grinding
motion. Therefore, never move the machine in the
other direction! Otherwise, the danger exists of it
being pushed uncontrolled out of the cut.
WORKING HINTS FOR YOUR ANGLE
GRINDER
If your power tool becomes too hot, run no load for
2-3 minutes to cool the motor.
Never start your angle grinder with the disc/
Fig. 1
Fig. 2-1
Fig. 2-2
Fig. 3
Fig. 2-3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
15o-30o
8
Inner flange
Outer flange
Disc
Inner flange
Outer flange
Disc