Operator`s manual

page 11
Drilling in Wood, Composition Materials
and Plastic
When drilling in wood, composition materials
and plastic, start the drill slowly, gradually
increasing speed as you drill. When drilling
into wood, use wood augers or twist drill bits.
Always use sharp bits. When using twist drill
bits, pull the bit out of the hole frequently
to clear chips from the bit flutes. To reduce
the chance of splintering, back work with a
piece of scrap wood. Select low speeds for
plastics with a low melting point.
Drilling in Metal
When drilling in metal, use high speed steel
twist drills or hole saws. Use a center punch
to start the hole. Lubricate drill bits with
cutting oil when drilling in iron or steel. Use
a coolant when drilling in nonferrous metals
such as copper, brass or aluminum. Back the
material to prevent binding and distortion on
breakthrough.
Drilling in Masonry
When drilling in masonry, select the
hammer-drill operating mode. Use high
speed carbide-tipped bits. Drilling soft
masonry materials such as cinder block
requires little pressure. Hard materials like
concrete require more pressure. A smooth,
even flow of dust indicates the proper drilling
rate. Do not let the bit spin in the hole without
cutting. Do not use water to settle dust or
to cool bit. Both actions will damage the
carbide.
Driving Screws and Nut Running
Drill a pilot hole when driving screws into
thick or hard materials. Set the torque
selector collar to the proper position and
set the speed to low. Use the proper style
and size screwdriver bit for the type of screw
you are using.
With the screwdriver bit in the screw, place
the tip of the screw on the workpiece and
apply firm pressure before pulling the trigger.
Screws can be removed by reversing the
motor.
Overloading
Continuous overloading may cause perma-
nent damage to tool or battery pack.
APPLICATIONS
To reduce the risk of electric shock,
check work area for hidden pipes
and wires before drilling or driving
screws.
WARNING