MasterForce 241-0400, Руководство оператора

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elongate a hole. Let the tool do the work.
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.
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.
WARNING! This drill 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 is the action of the brake.
WOOD DRILLING
For maximum performance, use high speed steel or brad point bits for wood
drilling.
Begin drilling at a very low speed to prevent the bit from slipping off the
starting point.
Increase speed as the drill bit bites into the material.
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.
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.
Begin drilling at a very low speed to prevent the bit from slipping off the
starting point.
Maintain a speed and pressure which allows cutting without overheating
the bit. Applying too much pressure will:
- Overheat the drill.
- Wear the bearings.
- Bend or burn bits.
- Produce off-center or irregular-shaped holes.