21
DRILLING
– cont’d
When drilling metals, use a light oil on the
drill bit to keep it from overheating. The oil
will prolong the life of the drill bit and
improve the cutting action. If the bit jams in
the workpiece, or if the drill stalls, release
the trigger switch immediately. Remove the
bit from the workpiece and determine the
reason for jamming.
DRIVING SCREWS
When driving screws, care must be taken
to use the bit that correctly fits the screw
being driven. Make sure you use the
largest bit size that will properly fit into the
head of the screw.
1. Select the correct screwdriver bit for
the screw being driven.
2. Fasten the screwdriver bit into the
chuck, making sure the flat sides of
the bit are gripped by the chuck jaws.
3. Set the torque clutch to the
appropriate setting, based on the
chart on Page 15.
NOTE:
If material is particularly soft or
porous, set the torque clutch to a lower
setting to avoid overdriving the screw.
4. If the screw is driven too far into the
workpiece before the clutch releases,
set the clutch to a lower setting, and
do not pull the trigger switch fully
back. If the screw is not driven far
enough into the workpiece, set the
clutch to a higher setting.
NOTE:
Do not continue to drive the screw
once the clutch has released. This causes
unnecessary wear of the clutch.
ASSEMBLY AND OPERATING
