
27
DRILLING
– cont’d
The workpiece to be drilled should be
secured in a vice or with clamps to keep it
from turning as the bit rotates (Fig. 22).
1. Check the drill bit to make sure it is
firmly locked into the drill chuck, and
verify that the forward/reverse switch
is in the forward position.
2. Set torque clutch to the drilling
position.
3. Hold the drill firmly with both hands
whenever possible. Use one hand to
grasp the handle and switch, and the
other to grasp the body of the drill or
the auxiliary handle if it is installed.
NOTE:
Make sure the hand placed on the
body of the drill does not cover the air
vents. Covering these air vents will reduce
motor cooling, and possibly lead to
overheating the motor.
4. While holding the drill firmly, place the
point of the drill bit at the point to be
drilled. Squeeze the switch trigger to
start the drill.
NOTES:
a) Always use a higher drill speed when
drilling small holes. Use a slower drill
speed when drilling large holes.
b) Use a masonry bit with the drill in
hammer mode ONLY when drilling in
concrete or masonry.
5. Move the drill bit into the workpiece
applying only enough pressure to
keep the bit cutting. Do not force the
drill bit or apply sideways pressure to
elongate the hole.
ASSEMBLY AND OPERATING
Fig. 22
Summary of Contents for 54-2903-2
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