5
Forward-Reverse
To change the chuck rotation direction, press the Forward-Reverse switch.
For clockwise (forward) rotation, push it from the right side.
For counterclockwise (reverse) rotation, push it from the left side.
Regular drilling and Hammer drilling mode
To change the drill from regular drilling to the hammer drilling, wait until the drill has
stopped turning, and slide the drilling and impact mode selector switch to the left,
the side with the hammer drill mode symbol. This will cause the drill to use
percussion as well as turning action. This percussion causes the tip of the drill bit to
break up the material it contacts, while the turning action removes the debris created
from the contact point at the drill tip. The percussion varies from 0 to 40,000 beats per
minute. Be aware that the force of the impact tends to diminish as the number of
beats per minute increases.
Do not move the drilling and impact mode selector switch while the drill is turning.
WARNING: Turn off your drill at once, unplug and inspect it for serious problems if:
Moving parts get stuck
Speed drops to an abnormally low level
The motor housing gets hot
Sparks or odors emit from the casing
Metal Drilling
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metal or steel drilling.
1. Move the drilling and impact mode selector switch to the regular drilling mode.
2. Use a center punch to mark the hole location on the workpiece.
3. Begin drilling at a very low speed to prevent the bit from slipping off the starting
point.
4. Maintain a speed and pressure which allows drilling without overheating the bit.
Applying too much pressure may overheat the drill, wear out the bearing, bend
or burn bits, produce off-center or irregular shaped holes.
5. When drilling large holes in metal it is highly recommended to drill with a small
bit at first, and finish with a larger bit. It is also recommended to use a cutting
lubricant to improve drilling action and increase bit life.
Wood Drilling
NOTE: For maximum performance, use high speed steel bits for wood drilling.
1. Move the drilling and impact mode selector switch to the regular drilling mode.
2. Secure the workpiece to prevent it from turning when drilling which may cause
injury.
3. Begin drilling at a very low speed to prevent the bit from slipping off the starting
OPERATING PROCEDURES
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point. Increase the speed as the drill bit bites into the material.
This tool is designed for drilling into almost any material. For drilling into wood,
metal, and plastics, use it in the regular (non-hammer) setting. For drilling holes
in stone or concrete, use special masonry drill bits and the hammer setting.
Set to Hammer Drill for masonry bits.
(Hammer drilling mode) (Regular drilling mode)
Set to Drill for other bits.
