ZLDDS-012
4. DRILLING
5. HELPFUL TIPS
When drilling hard, smooth surfaces, use a centre punch to mark
the desired hole location. This measure will prevent the drill bit from
slipping off centre as you start the hole.
When drilling metals, use light oil on the drill bit to keep it from
overheating. The oil will prolong the life of the bit and increase drilling
action.
Before starting to drill, perform a few simple checks.
3. Secure the material to be drilled in a vice or clamp to stop it turning
whilst drilling.
3. Drill into the material until the surface reaches the start of the tape..
7. Move the drill bit into the workpiece.
1. Depress and release the
variable speed trigger to
ensure it is not locked on.
1. Measure along the drill bit to
indicate the desired depth
5. Hold the drill firmly and place
the bit at the point to be drilled.
2. Check the forward/reverse
lever is on desired setting.
2. Wrap a small piece of masking
tape tightly around the drill bit.
6. Depress the variable speed
trigger to start the drill.
FWD
REV
Note:
Do not force the drill or apply side pressure to elongate the hole.
Let the drill do all the work.
Torque Settings
Drilling to a Preset Depth
2. If the clutch rachets and
makes a clicking sound before
screw is flush, increase the
collar setting and continue
tightening.
Torque settings can alter the depth to which you can drill or drive into
a surface. To determine the torque setting required to drive a screw
perfectly flush to the work surface, follow the below steps.
A simple way of achieving a hole at a desired depth is to use masking
tape.
1. Set the torque
collar to lowest
setting and tighten
the first screw.
3. Repeat until you
reach the correct
setting/ screw
depth. Use this
setting for the
remaining screws.
