WARNING. Before connecting the drill to a power supply source, always check to
be sure it is not in lock-on position (press and release the ON/OFF switch). Failure
to ensure that it is not locked-on could result in accidental starting of the drill resulting in
possible serious injury. Do not lock the ON/OFF switch in applications where the drill may
need to be suddenly stopped.
DRILLING
• When drilling hard, smooth surfaces, 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.
• If the bit jams in the workpiece or if the drill stalls, stop the power tool immediately.
Remove the drill bit from the workpiece and determine the reason for jamming.
WOOD AND METAL DRILLING
• For maximum performance, use high speed steel drill bits for wood or metal drilling.
• Select drilling mode. Begin drilling at a very low speed to prevent the drill bit from
slipping off the starting point.
Wood drilling
• Increase the speed as the drill bit bites into the workpiece.
• 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
• Use a light oil on the drill bit to keep it from overheating. The oil will prolong the lifespan
of the drill bit and increase the drilling action.
• Maintain the speed and pressure which allows cutting without overheating the drill bit.
Applying too much pressure will:
• Overheat the drill bit,
• Wear the bearings,
• Bend or burn the drill bits,
• Produce off-center or irregular-shaped holes.
• When drilling large holes in metal, start with a small drill bit, then finish with a larger bit.
Masonry drilling
• For maximum performance, use carbide-tipped masonry impact drill bits or designated
impact drill bits when drilling holes in brick, tile, concrete etc. Select impact drilling mode.
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