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12
DRILLING
See Figures 8 and 9.
Attach auxiliary handle (except for very light duty jobs)
Depress and release the switch trigger to be sure the
drill is in the OFF position before connecting it to power
supply.
Secure the material to be drilled in a vise or with clamps
to keep it from turning as the drill bit rotates.
Plug the drill into power supply source.
Hold the drill firmly and place the bit at the point to be
drilled.
Depress the switch trigger to start the drill. Do not lock
the switch ON for jobs where the drill may need to be
stopped suddenly.
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 drill and
bit do the work.
WARNING:
Be prepared for binding or bit breakthrough. When
these situations occur, drill has a tendency to grab
and kick opposite to the direction of rotation and
could cause loss of control when breaking through
material. If not prepared, this loss of control can
result in possible serious injury.
When drilling hard smooth surfaces use a center punch to
mark the desired hole location. This will prevent the drill bit
from slipping off center as the hole is started.
When drilling metals use a light oil on the drill bit to keep it
from overheating. The oil will prolong the life of the bit and
increase the drilling action.
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.
Fig. 8
OPERATION
R
Fig. 9