Kickback And Related Warnings; Safety Warnings Specific For Grinding And Abrasive Cutting-Off - Dremel Micro Original Instructions Manual

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 could give the operator an electric
shock.
k. 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.
l. 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 have a tendency
to roll while being cut, and may cause the bit
to bind or jump toward you.
m. 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.
n. 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.
o. 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.
p. 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.
q. 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.
r. Do not operate the power tool near
flammable materials. Sparks could ignite
these materials.
s. Do not use accessories that require liquid
coolants. Using water or other liquid coolants
may result in electrocution or shock.

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 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 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.
b. 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.
c. Do not attach a toothed saw blade. Such
blades create frequent kickback and loss of
control.
d. 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.
e. 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.
f. Never place your hand near the rotating
accessory. The accessory may kickback over
your hand.
g. Do not position your body in the area
where the 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.
SAFETY WARNINGS SPECIFIC FOR
GRINDING AND ABRASIVE CUTTING-OFF
OPERATIONS
a. 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
shatter.
b. 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.
c. 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
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