ENGLISH
6
Drilling
WARNING: To reduce the risk of personal injury,
ALWAYS ensure workpiece is anchored or clamped
firmly. If drilling thin material, use a wood “back-up”
block to prevent damage to thematerial.
1. Use sharp drill bits only. For WOOD, use twist drill bits,
spade bits, power auger bits, or hole saws. For METAL,
use steel twist drill bits or hole saws. For MASONRY, such
as brick, cement, cinder block, etc., use carbide-tipped
bits rated for percussiondrilling.
2. Always apply pressure in a straight line with the bit. Use
enough pressure to keep drill biting, but do not push
hard enough to stall the motor or deflect thebit.
3. Hold tool firmly with both hands to control the twisting
action of thedrill.
4. IF DRILL STALLS, it is usually because it is being
overloaded or improperly used. RELEASE TRIGGER
IMMEDIATELY, remove drill bit from work, and
determine cause of stalling. DO NOT CLICK TRIGGER
ON AND OFF IN AN ATTEMPT TO START A STALLED
DRILL — THIS CAN DAMAGE THEDRILL.
5. To minimize stalling or breaking through the material,
reduce pressure on drill and ease the bit through the
last fractional part of thehole.
6. Keep the motor running when pulling the bit back out
of a drilled hole. This will help preventjamming.
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
skippingout.
Drilling in Metal
USE ONLY in the low-speed gear range. 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 drilleddry.
NOTE: Large [5/16" (8 mm) to 1/2" (13 mm)] holes in steel
can be made easier if a pilot hole [5/32" (4 mm) to 3/16"
(5mm)] is drilledfirst.
Drilling in Wood
USE ONLY in the low-speed gear range. 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.
Work that is apt to splinter should be backed up with a
block ofwood.
Drilling in Masonry
When drilling in masonry, use carbide tipped bits rated
for percussion drilling and be certain that the bit is sharp.
For holes up to 3/8" (10 mm) diameter use the high-speed
gear range. For holes larger than 3/8" (10 mm), use the the
low-speed gear range. Ensure that the hammer mode is
selected. Use a constant and firm force on the tool to drill
most effectively. A smooth, even flow of dust indicates the
proper drillingrate.
Depth Rod (Fig. A)
To adjust the depth rod
8
, loosen the handle and move
rod so that the distance between the end of the rod and
the end of the bit equals the desired drilling depth. When
drilling with depth rod, stop when end of rod reaches
surface ofmaterial.
MAINTENANCE
WARNING: To reduce the risk of serious personal
injury, turn unit off and disconnect it from
power source before making any adjustments or
removing/installing attachments or accessories.
An accidental start-up can causeinjury.
Your D
WALT power tool has been designed to operate
over a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper
tool care and regular cleaning.
Lubrication
Your power tool requires no additional lubrication.
Cleaning
WARNING: Blow dirt and dust out of all air vents with
clean, dry air at least once a week. To minimize the
risk of eye injury, always wear approved eye protection
when performingthis.
WARNING: Never use solvents or other harsh
chemicals for cleaning the non-metallic parts of
the tool. These chemicals may weaken the plastic
materials used in these parts. Use a cloth dampened
only with water and mild soap. Never let any liquid
get inside the tool; never immerse any part of the tool
into aliquid.
Accessories
WARNING: Since accessories, other than those
offered by