Craftsman 5275.1 Operator's Manual page 18

NOTICE: This drill/driver is equipped with an electric brake. When the brake is
functioning properly, sparks may be visible through the vent slots in the housing.
This is normal and results from the action of the brake.
WOOD DRILLING
For maximum performance, use wood-boring brad- point drill bits (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.
METAL DRILLING
For maximum performance, use high speed steel bits (available separately) 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. Set drill speed to LO and maintain a speed and pressure which 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
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