ENGLISH
9
WARNING: To reduce the risk of
personal injury, ALWAYS operate
the tool with the side handle properly
installed and securely tightened. Failure
to do so may result in the side handle
slipping during tool operation and
subsequent loss of control. Hold tool
with both hands to maximize control.
Depress mode selector button (f) and turn the mode
selector (g) to the drill bit symbol for drilling, to the
hammer symbol for hammering or to the hammerdrill
symbol for hammerdrilling.
DRILLING OPERATION
1. For WOOD, use twist bits, spade bits, power
auger bits or hole saws. For METAL, use high-
speed steel twist drill bits or hole saws. Use
a cutting lubricant when drilling metals. The
exceptions are cast iron and brass which should
be drilled dry. For MASONRY, use carbide-
tipped bits or masonry bits. A smooth, even
flow of dust indicates the proper drilling rate.
2. Always apply pressure in a straight line with the
bit. Use enough pressure to keep the drill bit
biting, but do not push hard enough to stall the
motor or deflect the bit.
3. Hold tool firmly with both hands to control the
twisting action of the drill.
WARNING: Drill may stall if overloaded
causing a sudden twist. Always expect
the stall. Grip the drill firmly with both
hands to control the twisting action and
avoid injury.
4. IF DRILL STALLS, it is usually because it
is being overloaded. RELEASE TRIGGER
IMMEDIATELY, remove drill bit from work,
and determine cause of stalling. DO NOT
CLICK TRIGGER OFF AND ON IN AN
ATTEMPT TO START A STALLED DRILL –
THIS CAN DAMAGE THE DRILL.
5. To minimize stalling or breaking through the
material, reduce pressure on drill and ease the
bit through the last fractional part of the hole.
6. Keep the motor running when pulling the bit
back out of a drilled hole. This will help prevent
jamming.
7. With variable speed drills there is no need to
center punch the point to be drilled. Use a
slow speed to start the hole and accelerate by
squeezing the trigger harder when the hole is
deep enough to drill without the bit skipping
out.
DRILLING IN METAL
An SDS Plus
®
to round shank adapter chuck is
required. Ensure that tool is in drill-only mode. Start
drilling with slow speed and increase to full power
while applying firm pressure on the tool. A smooth
even flow of metal chips indicates the proper drilling
rate. Use a cutting lubricant when drilling metals.
The exceptions are cast iron and brass which should
be drilled dry.
NOTE: Large [7.9 mm to 12.7 mm (5/16" to 1/2")]
holes in steel can be made easier if a pilot hole
[4 mm to 4.8 mm (5/32" to 3/16")] is drilled first.
DRILLING IN WOOD
An SDS Plus
®
to round shank adapter chuck is
required. Ensure that tool is in drill-only mode. Start
drilling with slow speed and increase to full power
while applying firm pressure on the tool. Holes in
wood can be made with the same twist drills used
for metal. These bits may overheat unless pulled out
frequently to clear chips from the flutes. For larger
holes, use spade bits, power auger bits, or hole
saws. Work that is apt to splinter should be backed
up with a block of wood.
Screwdriving (fig. 1)
1. Set the mode selector switch (g) to the rotary
drilling position.
2. Select the direction of rotation.
3. Insert the special SDS Plus
®
screwdriving
adaptor for use with hexagonal screwdriver bits.
4. Insert the appropriate screwdriver bit. When
driving slotted head screws always use bits with
a finder sleeve.
5. Gently press the variable speed switch (a) to
prevent damage to the screw head. In reverse
(LH) rotation the tool speed is automatically
reduced for easy screw removal.
6. When the screw is flush with the workpiece,
release the variable speed switch to prevent
the screw head from penetrating into the
workpiece.
Hammerdrill Operation
1. When drilling, use just enough force on the
hammer to keep it from bouncing excessively
or “rising” off the bit. Too much force will cause
slower drilling speeds, overheating, and a lower
drilling rate.
2. Drill straight, keeping the bit at a right angle to
the work. Do not exert side pressure on the bit
when drilling as this will cause clogging of the
bit flutes and a slower drilling speed.
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