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Model H7792/H7793/H7794/H7795 Cordless Drills-12-
Know your worksite: Only drill as deep
as necessary. Check behind walls for
wires, other electrical hazards, or plumb-
ing.
Ensure the safety of the workplace:
Clear the work area of all parts and debris
that may cause injury by flying objects.
Securely fix the object to be drilled or fas-
tened in a vise or clamp to avoid injury. Do
not attempt to hold workpiece by hand.
Avoid overloading the drill: Use sharp
drill bits and avoid applying excessive
pressure to the drill. If the speed drops
abnormally, decrease pressure immedi-
ately. If the bit stops abruptly or becomes
blocked, release the trigger at once.
Reverse the direction to free the drill bit.
Avoid overheating the drill bit: Use
sharp bits that are appropriate for the
workpiece, lubrication, and an oscillating
motion when drilling deep holes to allow
chips to clear and the bit to cool off.
Speed and pressure: Use slow speed
when starting to drill and when drilling in
hard material. Only use as much pressure
as needed. Too much pressure and speed
can cause the bit to overheat. Too little
pressure can allow the bit to spin in the
hole, dulling the drill bit.
Drilling metal: Use a center punch to
make a dent at the center of the desired
hole. Drill using a carbide bit, slow speed,
and firm pressure. Use lubrication to pre-
vent overheating the bit.
Drilling Tips
Operating this equipment has the
potential for flying debris to cause eye
injury. Always wear safety glasses or
goggles when operating equipment.
Everyday glasses or reading glasses
only have impact resistant lenses,
they are not safety glasses. Be certain
the safety glasses you wear meet the
appropriate standards of the American
National Standards Institute (ANSI).
Performing drilling operations:
1. Install the correct sized drill bit.
2. Set the clutch to drill and set the direc-
tion to clockwise (forward).
3. Place the drill bit firmly against the
workpiece, start the drill slowly and
gradually increase speed, while apply-
ing pressure to drive the drill into the
workpiece.
4. When drilling deep holes, occasionally
pull the drill bit almost all the way out
of the hole to allow chips to clear and
the drill bit to cool.
Drilling