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DRILLING METAL
In addition to the instructions listed under GENERAL DRILLING, the following
also apply:
CAUTION: When drilling metal, jamming of bit is more likely than
when drilling other materials.
1. Use only good quality sharp high speed steel twist bits when drilling
metal.
2. Start drilling with slow speed and gradually increase speed as drill cuts.
The harder the material, the slower the speed required. The softer the material,
the faster the speed.
3. When drilling a large hole, it is easier to first drill a smaller hole and then
enlarge it to the required size.
4. The use of a lubricant, such as oil, on the drill point helps keep the bit
cool, increases drilling action and prolongs drill bit life.
MAINTENANCE
KEEP TOOL CLEAN
Periodically blow out all air passages with dry compressed air. Remove
buildup of grime resulting from working with green or sappy wood. All plastic
parts should be cleaned with a soft damp cloth. NEVER use solvents to clean
plastic parts. They could possibly dissolve or otherwise damage the material.
CAUTION: Wear safety glasses while using compressed air.
FAILURE TO START
Should your tool fail to start, check to make sure the prongs on the cord plug
are making good contact in the outlet. Also, check for blown fuses or open
circuit breakers in the line.
CHUCK REPLACEMENT
1. CAUTION: DISCONNECT TOOL FROM POWER SOURCE.
2. Open chuck jaws as wide as possible to gain access to the chuck
retaining screw.
3. Remove chuck retaining screw with a standard “flat” screwdriver. Turn
screw clockwise (left hand threads) to remove.
4. Place the short end of a large allen wrench (
1
/4" or larger) into the chuck.
Align wrench flats with chuck jaws and tighten chuck securely using chuck
key. While supporting chuck on a solid surface, position allen wrench to left
(see Fig. 5) and strike wrench a sharp blow with a hammer to loosen chuck.
Turn chuck counterclockwise to remove.
NOTE: Some Models have a washer behind the chuck. The washer
should remain on the spindle for use with the replacement chuck.
5. INSTALL CHUCK: Open jaws of replacement chuck as wide as possible.
Thread chuck onto spindle by turning chuck clockwise. Hand tighten. Install
allen wrench in chuck (see Step 4). While supporting chuck on a solid surface,
position allen wrench to the right (see Fig. 6) and strike a sharp blow with a
hammer to seat chuck onto spindle.
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