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oPeraTinG insTruCTions
10. drilling in metal
For maximum performance, use high-speed steel bits for metal or steel drilling.
a. When drilling metals, use light oil on the drill bit to keep it from overheating. The oil will prolong
the life of the bit and increase the drilling action.
b . Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
c .
Maintain a speed and pressure that allows cutting without overheating the bit. Applying too much
pressure will:
– Overheat the drill
– Wear the bearings
– Bend or burn the bits
– Produce off-center or irregularly-shaped holes
Care and mainTenanCe
All maintenance should only be carried out by a qualified repair person.
Cleaning
Before cleaning or performing any maintenance, disconnect the tool from the power source. For safe
and proper operation, always keep the tool and its ventilation slots clean. Only use a soft, dry cloth to
clean your drill. Never use any detergent or alcohol.
Removing the Chuck
a. Unplug the drill from the power source.
b . Open the chuck (C) jaws by turning the sleeve (A) in
a counterclockwise direction.
c .
Use a Phillips screwdriver (not included) to remove
the chuck screw by turning it in a clockwise direction.
d . Insert a 5/16 in. or larger hex key (not included)
into the chuck and securely tighten the chuck jaws
around the hex key.
e . Tap the hex key sharply with a mallet (not included)
in a counterclockwise direction. This will loosen the
chuck for easy removal.
noTe: The chuck screw has left-handed threads. Attach
a new chuck to the spindle and tighten the chuck screw.
Chuck screw
12
C
A
C
A
C
A
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