Use And Care Manual

Page 13
OPERATION
DRILLING (FIG. 10)
1. Check the direction-of-rotation selector
for the correct setting.
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 rmly and place the bit at
the point to be drilled.
4. Depress the variable-speed 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. 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 the drilling action.
8. 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. 10
WOOD DRILLING
For maximum performance, use high-speed
steel or brad-point bits for wood drilling.
1. Begin drilling at a very low speed to
prevent the bit from slipping off the
starting point.
2. Increase speed as the drill bit bites into
the material.
3. 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.
METAL DRILLING
For maximum performance, use high-speed
steel bits for metal or steel drilling.
1. 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 the drilling action.
2. Begin drilling at a very low speed to
prevent the bit from slipping off the
starting point.
3. Maintain a speed and pressure which
allows cutting without overheating the
bit. Applying too much pressure will:
- Overheat the drill/driver.
- Wear the bearings.
- Bend or burn bits.
- Produce off-center or irregular-shaped
holes.
WARNING:
Always wear safety
goggles or safety glasses with side
shields during power tool operation or
when blowing dust. If operation is dusty,
also wear a dust mask.