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ROTARY TOOL SAFETY WARNINGS
WARNING!
Do not use accessories which are not specifically designed 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. 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 guarded or controlled.
• Threaded mounting of accessories must match the spindle thread. 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. Before each use inspect 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 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.
• 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 wherever practical. Never hold a small workpiece in one
hand and the tool in 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 have a
tendency to roll while being cut, and may cause the bit to bind or jump towards you.
• 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.
• After changing the bits or making any adjustments, make sure the collet nut, chuck or any
other adjustment device 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
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 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. 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.
• Never place your hand near the rotating accessory. Accessory 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. Corners, 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.
• Use only wheel types that are recommended for your power tool and only for recommended
applications. 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
chatter.
• Do not "jam" the cut-off wheel or apply excessive pressure. Do not attempt to make an
excessive depth of cut. Over stressing the wheel increases the loading and susceptibility 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 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.
• 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.
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