Selecting Bits
When selecting a bit, use the right type for your job. For best
performance, always use sharp bits.
Drilling in Wood Composition Materials and Plastic
When drilling in wood, composition materials and plastic,
start the drill slowly, gradually increasing speed as you drill.
Use low speeds for plastics with a low melting point.
NOTE:
Keep the speed low enough to prevent burning the
bit.
Drilling in Metal
When drilling in metal, use high speed steel twist drills or hole
saws. Use a center punch to start the hole. Lubricate drill bits
with cutting oil when drilling in iron or steel. Use a coolant
when drilling in nonferrous metals such as copper, brass or alu-
minum. Back the material to prevent binding and distortion on
breakthrough.
Drilling in Masonry
When drilling in masonry, use high speed carbide-tipped bits.
Drilling soft masonry materials such as cinder block requires
little pressure. Hard materials like concrete require more pres-
sure. A smooth, even flow of dust indicates the proper drilling
rate. Do not let the bit spin in the hole without cutting. Do not
use water to settle dust or to cool bit. Do not attempt to drill
through steel reinforcing rods. Both actions will damage the
carbide.
Using Forward/Reverse Switch (Fig. 6)
1. For
forward
(clockwise) rotation, push the
forward/reverse switch to FWD as shown.
Check the direction of rotation before use.
2. For
reverse
(counterclockwise) rotation, push the for-
ward/reverse switch to REV as shown.
Check the direction of rotation before use.
Although an interlock prevents reversing the tool while the
motor is running, allow the motor to come to a full stop
before reversing.
Starting, Stopping and Controlling Speed
1. To
start
the tool, pull trigger.
2. To
stop
the tool, release the trigger.
3. To vary the speed, increase or decrease pressure to the trig-
ger. The further the trigger is pulled, the greater the speed.
Drilling
1. Before drilling, be sure the workpiece is clamped securely.
Use backing material to prevent damage to the workpiece dur-
ing breakthrough.
2. When starting a hole, place the drill bit on the work surface
and apply firm pressure. Begin drilling at a slow speed, gradu-
ally increasing the speed as you drill.
3. Always apply pressure in line with the bit. Use enough pres-
sure to keep the drill biting, but do not push hard enough to
stall the motor.
4. Reduce pressure and ease the bit through the last part of the
hole. While the tool is still running, pull the bit out of the hole
to prevent jamming.
(Continued on next page)
Operating Instructions
(
continued
)
Page 3
RenTrain INC
RenTrain INC
APPLICATIONS
OPERATION
To reduce the risk of injury, wear safety gog-
gles or glasses with side shields.
WARNING!
To reduce the risk of injury, keep hands and
cord away from the bit and all moving parts.
WARNING!
To reduce the risk of explosion, electric shock
and property damage, always check the work
area for hidden pipes and wires before drilling
WARNING!
Fig. 6
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