Safety instructions
Save all warnings and instructions for future reference.
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Warning: read all safety warnings and all instructions. Failure to follow the warnings and instruc-
tions may result in electric shock, fire and/or serious injuries.
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.
Electrical safety
The Power tool plug must match the socket. Never modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching sockets will
reduce the risk of electric shock.
Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigera-
tors. 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
the 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 extension cord suitable for outdoor use. Use of a cord
suitable for outdoor use 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 operating 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 injuries.
Prevent unintentional starting. Ensure the switch is in the off-position before connecting to the power
source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on
the switch or energizing power tools that have the switch on invites accidents.
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.
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 jewellery. 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 extraction and collection facilities, ensure these are
connected and properly used. Use of these devices can reduce 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.
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Safety instructions for all operations
Safety warnings common for grinding, sanding, wire brushing, polishing, carving or abrasive
cutting-off operations:
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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 binding of moving parts, breakage of parts and any
other condition that may affect the power tools 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 accordance with these instructions and in the
manner intended for the particular type of power tool, 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.
Service
Have your power tool serviced by a qualified repair person using only identical replacement parts.
This will ensure that the safety of the power tool is maintained.
This power tool is intended to function as a grinder, sander, wire brush, polisher, carving or cut-off
tool. Read all safety warnings, instructions, illustrations and specifications provided with this power
tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious
injury.
NOTE List only those operations that are applicable.
Do not use accessories which are not specifically designed and recommended by the tool manufactur-
er. Just because the accessory can be attached to your power tool, it does not assure safe operation.
The rated speed of the grinding accessories must be at least equal to the maximum speed marked
on the power tool. Grinding accessories running faster than their rated speed can break and fly apart.
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 controlled.
The arbor size of wheels, sanding drums or any other accessory must properly fit the spindle or collet
of the power tool. 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.
Mandrel mounted wheels, sanding drums, cutters or other accessories must be fully inserted into the
collet or chuck. If the mandrel is insufficiently held and/or the overhang of the wheel is too long, the
mounted wheel may become loose and be ejected at high velocity.
Do not use a damaged accessory. Please inspect the accessory before each use such as abrasive
wheels for chips and cracks, sanding drum for cracks, tear or excess wear, wire brush for loose or
cracked wires. 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.
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 flying debris generated 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
accessory may contact hidden wiring or its own cord. Cutting accessory contacting a "live" wire may
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Further safety instructions for all operations
Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged rotating 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 accessory’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 the 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.
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Additional safety instructions for grinding and cutting-off operations
Safety warnings specific for grinding and abrasive cutting-off operations:
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make exposed metal parts of the power tool "live" and could give the operator an electric shock.
Always hold the tool firmly in your hand(s) during the start-up. The reaction torque of the motor, as it
accelerates to full speed, can cause the tool to twist.
Use clamps to support workpiece whenever practical. Never hold a small workpiece in one hand and
the tool in the other hand while in use. Clamping a small workpiece allows you to use your hand(s) to
control the tool. Round material such as dowel rods, pipes or tubing has a tendency to roll while being
cut, and may cause the bit to bind or jump toward you.
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.
Never lay the power tool down until the accessory has come to a complete stop. The spinning acces-
sory may grab the surface and pull the power tool out of your control.
After changing the bits or making any adjustments, make sure the collet nut, chuck or any other
adjustment devices are securely tightened. Loose adjustment devices can unexpectedly shift,
causing loss of control, loose rotating components will be violently thrown.
Do not run the power tool while carrying it at your side. Accidental contact with the spinning accesso-
ry 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 accumulation of powdered metal may cause electrical hazards.
Do not operate the power tool near flammable materials. Sparks could ignite these materials.
Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in
electrocution or shock.
Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback
forces. The operator can control kickback forces, if proper precautions are taken.
Use special care when working corners, sharp edges, etc. Avoid bouncing and snagging the acces-
sory. Corners, sharp edges or bouncing have a tendency to snag the rotating accessory and cause
loss of control or kickback.
Do not attach a toothed saw blade. Such blades create frequent kickback and loss of control.
Always feed the bit into the material in the same direction as the cutting edge is exiting from the
material (which is the same direction as the chips are thrown). Feeding the tool in the wrong direction
causes the cutting edge of the bit to climb out of the work and pull the tool in the direction of this feed.
When using rotary files, cut-off wheels, high-speed cutters or tungsten carbide cutters, always have
the work securely clamped. These wheels will grab if they become slightly canted in the groove, and
can kickback. When a cut-off wheel grabs, the wheel itself usually breaks. When a rotary file,
high-speed cutter or tungsten carbide cutter grabs, it may jump from the groove and you could lose
control of the tool.
Use only wheel types that are recommended for your power tool and only for recommended applica-
tions. For example: do not grind with the side of a cut-off wheel. Abrasive cut-off wheels are intended
for peripheral grinding, side forces applied to these wheels may cause them to shatter.
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Additional safety instructions for wire brushing operations
Safety warnings specific for wire brushing operations:
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Battery tool use and care
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Service
Have your power tool serviced by a qualified repair person using only identical replacement parts. This
will ensure that the safety of the power tool is maintained.
For the charger
Intended use
Charge only rechargeable battery packs. Other types of batteries may burst to cause personal injury and
damage.
For threaded abrasive cones and plugs use only undamaged wheel mandrels with an unrelieved
shoulder flange that are of correct size and length. Proper mandrels will reduce the possibility of
breakage.
Do not “jam” a 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 to twisting or snagging of the
wheel in the cut and the possibility of kickback or wheel breakage.
Do not position your hand in line with and behind the rotating wheel. When the wheel, at the point of
operation, is moving away from your hand, the possible kickback may propel the spinning wheel and
the power tool directly at you.
When the wheel is pinched, snagged 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 pinching or snagging.
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 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.
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.
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.
Allow brushes to run at operating speed for at least one minute before using them. During this time
no one is to stand in front or in line with the brush. Loose bristles or wires will be discharged during
the run-in time.
Direct the discharge of the spinning wire brush away from you. Small particles and tiny wire
fragments may be discharged at high velocity during the use of these brushes and may imbed in your
skin.
Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type
of battery pack may create a risk of fire when used with another battery pack.
Use power tools only with specifically designated battery packs. Use of any other battery packs may
create a risk of injury and fire.
When the battery pack is not in use, keep it away from other 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 accidental-
ly occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from
the battery may cause irritation or burns.
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Electrical safety
When using electric machines always observe the safety regulations applicable in your country to
reduce the risk of fire, electric shock and personal injury. Read the following safety instructions and also
the enclosed safety instructions.
TECHNICAL SPECIFICATIONS
The appliance is not to be used by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision
or instruction
Children being supervised not to play with the appliance
Do not recharge non-rechargeable batteries!
During charging, batteries must be placed in the well-ventilated area!
Integrated batteries may only be removed for disposal by qualified personnel. Opening the housing
shell can destroy the power tool. To remove the battery from the power tool, press the On/Off switch
until the battery is fully discharged. Unscrew the screws on the housing and remove the housing shell
in order to remove the battery. To prevent a short circuit, disconnect the connectors on the battery
one at a time and then isolate the poles. Even when fully discharged, the battery still contains a
residual capacity, which can be released in case of a short circuit.
Know Your Rotary Tool
Before attempting to use any tool, familiarize yourself with all operating features and safety require-
ments.(See Figure 1)
Charging Tool
NOTE! The Mini Grinder does not come completely charged from the factory. Be sure to charge tool
prior to initial use.
Turn the hook to ensure that the charger plug can be inserted into the machine charging socket. Insert
the power adapter plug into your standard power outlet.
The blue LED lights located on the top side of the tool housing will start scrolling rear/front to signal the
battery is receiving a charge. Charging will automatically stop when the tool is fully charged. When all
the blue LED lights are always on charging is complete.
Battery Charge Indicator
This tool is equipped with a charge indicator that tells you how much charge your battery has.
When four blue lights are always on, the battery is full. As the battery capacity decreases, the blue light
goes out one by one. When the battery is depleted, the tool will turn off automatically. The blue light will
all go out.
Operating Instructions
Using the Rotary Tool
The first step in learning to use the Rotary Tool is to get the “feel” of it. Hold it in your hand and feel its
weight and balance. Feel the taper of the housing. Always hold the tool away from your face. Accesso-
ries can be damaged during handling, and can fly apart as they come up to speed. This is not common,
but it does happen. Whenever you hold the tool, be careful not to cover the air vents with your hand. This
blocks the airflow and causes the motor to overheat. For best control in close work, grip the Rotary Tool
like a pencil between your thumb and forefinger. (See Figure 2)
The “Golf Grip” method of holding the tool can be used for more aggressive operations such as grinding
a flat surface or using cutoff wheels. (See Figure 3)
Practice on scrap materials first to see how the Rotary Tool's high-speed action performs. Keep in mind
that the work is done by the speed of the tool and by the accessory in the collet. You should not lean on
or push the tool during use. Instead, lower the spinning accessory lightly to the work and allow it to touch
the point at which you want cutting (or sanding or etching, etc.) to begin. Concentrate on guiding the tool
over the work using very little pressure from your hand. Allow the accessory to do the work. Usually, it
is best to make a series of passes with the tool rather than attempt to do all the work in one pass. To
make a cut, for example, pass the tool back and forth over the work, much as you would a small
paintbrush. Cut a little material on each pass until you reach the desired depth. For most work, the
gentle touch is best. With it, you have the best control, are less likely to make errors, and will get the
most efficient work out of the accessory.
Operating Speeds
To select the right speed for each job, use a practice piece of material.
SLIDE "ON/OFF" SWITCH
The tool is switched "ON" by the slide switch located on the top side of the motor housing.
TO TURN THE TOOL "ON", slide the switch button forward. The tool will start working at a speed of
20,000 rpm
TO TURN THE TOOL "OFF", slide the switch button backward. If for some reasons the on/off switch
doesn't work there is always the option to alternatively turn off the tool by the following methods:
Press the minus (–) orange speed control button to bring the speed of the tool to the lowest speed level
(5,000 RPM).
Hold the minus (–) orange speed control button for 5 seconds.Then the tool will be turned off.
SPEED CONTROL BUTTONS
The tool is equipped with speed control buttons. The speed may be adjusted during operation by
pressing on the plus (+) or (-) minus orange buttons located on the top side of the battery housing.
Speed will increment or decrement from a minimum of 5,000 to a maximum of 30,000 rpm. The LED
lights located alongside the blue buttons will illuminate according to the chosen speed. Every time when
the tool is turned off the speed setup goes back to the medium level (20,000 rpm) so it might be neces-
sary to increase/decrease the speed to the level that it was being used.(See Figure 4)
The speed of Rotary Tool is controlled by setting the blue speed control buttons.
Needs for Slower Speeds
Certain materials, however, (some plastics and precious metals, for example) require a relatively slow
speed because at high speed the friction of the accessory generates heat and may cause damage to
the material.
Slow speeds (15,000 RPM or less) usually are best for polishing operations employing the felt polishing
accessories. They may also be best for working on delicate projects as delicate wood carving and fragile
model parts. All brushing applications require lower speeds to avoid wire discharge from the holder.
Higher speeds are better for carving, cutting, shaping, cutting dadoes or rabbets in wood.
Hardwoods, metals and glass require a high-speed operation, and drilling should also be done at high
speeds.
Many applications and accessories in our line will provide the best performance at full speed, but for
certain materials applications, and accessories, you need slower speeds, which is the reason our
variable speed models are available.
To aid you in determining the optimum operating speed for different materials and different accessories,
we have constructed a series of tables. By referring to these tables, you can discover the recommended
speeds for each type of accessory. Look these tables over and become familiar with them.
Ultimately, the best way to determine the correct speed for work on any material is to practice for a few
minutes on a piece of scrap, even after referring to the chart. You can quickly learn that a slower or
faster speed is more effective just by observing what happens as you make a pass or two at different
speeds. When working with plastic, for example, start at a slow rate of speed and increase the speed
until you observe that the plastic is melting at the point of contact. Then reduce the speed slightly to get
the optimum working speed.
Some rules of thumb in regard to speed:
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STALL PROTECTION
This tool has a stall protection feature built into it to protect the motor and battery in the event of a stall.
If you stall the tool for too long, or bind the bit in a workpiece, especially at high speeds, it will automati-
cally turn itself off. Simply take the tool out of the material you were stalled in, turn it off for 3 seconds,
then turn it back on again to continue using it. When the battery becomes close to empty, the tool may
shut down automatically more frequent than normal. If this happens, it is time to recharge the battery.
Changing Collets
Using collets is the most precise way to hold an accessory in a high-speed rotary tool. Even at high
speeds and maximum pressure, collets stay tight. ( See Figure 5, Figure 6)
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Installing Accessories
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Removing Accessories
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Using Mandrels
The most common types of the mandrel to use with this tool are the standard mandrel which is used with
cutoff discs, grinding wheels, emery wheels, and cut-off wheels. Screw mandrels are used with polishing
wheels and polishing drums. The drum mandrel is used with sanding drums.
To install:
If using the drum mandrel:
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If using the screw mandrel:
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Balancing Accessories
For precision work, it is important that all accessories be properly balanced. To balance an accessory,
slightly loosen the collet nut and give the accessory or collet a 1/4 in. turn. Retighten collet nut and run
the rotary tool. You should be able to tell by the sound and feel if the accessory is running in balance.
Continue adjusting in this fashion until the best balance is achieved. Replace accessories if they
become damaged or unbalanced.
Shield Rotary Tool Attachment
The rotary shield attachment provides a clear and simple solution for redirecting debris and sparks away
from the user without interfering with the task at hand. The tool shield can be used with right- or left-hand
grip positions and works to deflect debris on a variety of applications, including cutting, sanding, grinding
and polishing. The shield can be quickly adjusted into position, provides easy access to the accessory
without interfering with the workpiece.
Installation Instructions:
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Using the Shield Rotary Tool Attachment:
Always turn tool power off before adjusting position, changing accessory, and removing attachment.
Rotary Tools cut, sand, grind, and polish in many directions. To accommodate the Rotary Tool’s Maneu-
verability, the Shield can be quickly positioned and repositioned with a turn to the right or left .To extend
the life of the Shield periodically clean with a soft bristle brush or compressed air.
Speed Setting for Accessories: Cleaning, maintenance
Always pull out the mains power plug before starting any cleaning work.
Cleaning
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Maintenance
There are no parts inside the equipment which require additional maintenance.
Environmental Protection
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