
7
 e) The outside diameter and the thickness of 
your accessory must be within the capacity 
rating of your power tool. Incorrectly sized 
accessories cannon be adequately guarded or 
controlled.
 f) The arbour size of wheels, flanges, backing 
pads or any other accessory must properly 
fit the spindle of the power tool. Accessories 
with arbour holes 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 wheel 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 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 shop 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.
 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 fly 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 shock the operator. 
 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 
flammable 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.
Causes and Operator Prevention 
of Kickback
 • 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 tool misuse and/or 
incorrect operating procedures or conditions and 
can be avoided by taking proper precautions as 
given below:
 a) Maintain a firm 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 
reaction or kickback forces, if proper precautions 
are taken.
 b) Never place your hand near the rotating 
accessory. Accessory may kickback over your 
hand.
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