21
WARNING:
Make sure to insert the drill bit straight into the chuck jaws. Do not
insert the drill bit into the chuck jaws at an angle then tighten, as shown in figure
12. This could cause the drill bit to be thrown from the drill, resulting in possible
serious personal injury or damage to the chuck.
DRILLING
(Fig. 13)
1. Check the direction-of-rotation
selector for the correct setting
(forward or reverse).
2. Secure the material to be drilled
in a vise or with clamps to keep
it from turning as the drill bit
rotates.
3. Hold the drill firmly and place
the bit at the point to be drilled.
4. Depress the trigger switch to
start the drill.
5. Move the drill bit into the
workpiece, applying only enough pressure to keep the bit cutting. Do not
force the drill or apply side pressure to elongate a hole. Let the tool do the
work.
6. When drilling hard, smooth surfaces, use a center punch to mark the desired
location of the hole. This will prevent the drill bit from slipping off-center as
the hole is started.
7. If the bit jams in the workpiece or if the drill stalls, stop the tool immediately.
Remove the bit from the workpiece and determine the reason for jamming.
NOTE:
This drill is equipped with an electric brake. When the brake is
functioning properly, sparks may be visible through the vent slots in the
housing. This is normal and is the action of the brake.
WOOD DRILLING
1. For maximum performance, use high speed steel or brad point bits for wood
drilling.
2. Begin drilling at a very low speed to prevent the bit from slipping off the
starting point.
3. Increase speed as the drill bit bites into the material.
4. When drilling “through” holes, place a block of wood behind the workpiece
to prevent ragged or splintered edges on the back side of the hole.
Fig. 13
