Greatneck 80159, Owner'S Manual

Page: 17 / 23

17
DRILLING
When drilling in smooth hard surfaces such
as metal, 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.
NOTES:
a) Use slower drilling speeds when drilling
larger holes.
b) Use masonry bit with drill in impact
mode ONLY when drilling in concrete.
The workpiece to be drilled should be
secured in a vise or with clamps to keep it
from turning as the drill bit rotates (Fig. 9).
1. Check drill bit to make sure it is firmly
locked into the drill chuck and the
forward / reverse switch is in the
forward position.
2. 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.
NOTE: Make sure the hand placed on
the body of the drill does not cover the
air vents. Covering these air vents will
reduce the motor cooling and possibly
lead to overheating the motor.
3. While holding the drill firmly, place the
point of the drill bit at the point to be
drilled. Depress the switch trigger to
start the drill.
4. 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 OPERATION
Fig. 9