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Page 15
DRILLING IN WOOD
For maximum performance, use high-
speed-steel (available separately) or brad-
point bits (available separately) for wood
drilling.
1. 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.
2. Begin drilling at a very low speed to
prevent the bit from slipping off the
starting point.
3. Increase speed as the drill bit bites into
the material.
DRILLING IN METAL
For maximum performance, use high-
speed-steel bits (available separately) for
metal or steel drilling. It’s recommended to
use the impulse mode to drill into the steel
pipes.
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 a pressure that
allow 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 irregularly shaped
holes
OPERATION
WARNING:
Make sure to insert
the bit straight into the chuck jaws. Do
not insert the bit into the chuck jaws at an
angle and then tighten. This could cause
the bit to be thrown from the drill/driver,
resulting in possibly serious personal
injury or damage to the chuck.
WARNING:
Use protective gloves
when removing the bit from the tool, or
first allow the bit to cool down. The bit
may be hot after prolonged use.
DRILLING
1. Check that the direction-of-rotation
selector is at the forward 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/driver firmly and place the
bit at the point to be drilled.
4. Depress the variable-speed trigger
switch to start the drill/driver.
5. Move the drill bit into the workpiece,
applying only enough pressure to keep
the bit drilling. Do not force the drill or
apply side pressure to elongate a hole.
Let the tool do the work.
6. When drilling hard and 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.
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