Metal Drilling; Wood Drilling - Chicago Electric 98179 Owner's Manual & Safety Instructions

3/8'' heavy duty professional magnesium drill
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4.
There must not be hazardous objects, such
as utility lines or foreign objects, nearby that
will present a hazard while working.
General Operating Instructions
1.
Plug the Power Cord (36) into a suitable
outlet.
Direction
Lever
Trigger (32)
Lock ON Button
2.
Press the Direction Lever of the Trigger (32)
to determine the rotation direction of the
Chuck (2). Press to the right side for
clockwise Chuck rotation. Press to the left
side for counterclockwise Chuck rotation.
3.
Squeeze the Trigger (32) to start the tool.
The Trigger has a variable speed feature.
Pressing it lightly will make the tool operate
slowly, pressing more will cause the tool to
operate faster.
4.
You can lock the Trigger in the ON position
by squeezing the trigger, pressing in the
Lock ON button, and releasing the Trigger.
The tool will operate continuously. To stop
the tool, squeeze and release the Trigger.
5.
To prevent accidents, turn off the tool and
disconnect its power supply after use.
Clean, then store the tool indoors out of
children's reach.
The Drilling Operation
1.
Use only well-sharpened bits that are in
good condition and appropriate to the task.
2.
Use firm pressure when drilling, but do not
press too hard. Too much pressure will
not help the process and will cause the bit
to overheat, may cause the bit to bend or
Item 98179
For technical questions, please call 1-888-866-5797.
break, cause undue strain on the tool, and
may damage the bit or work piece. Pressing
too hard may stall the motor. WARNING:
If the motor stalls, release the Trigger
immediately, to prevent damage to the tool.
3.
Always drill in a straight line. Bending or
twisting the bit while drilling may cause the
bit to bend or break and may damage the
work piece.
4.
Back off your pressure when you are about
to penetrate the work piece.
5.
Keep the motor running when pulling the bit
out of a completed hole to prevent the bit
from jamming.

Metal Drilling

1.
Use high speed steel, carbide or specialty
bits for metal drilling.
2.
Secure the work piece to keep it from
moving during the drilling operation.
3.
Use a punch to create a dimple for the bit to
start.
4.
Start by drilling slowly to keep the bit from
moving away from your starting point.
5.
As the hole is established, increase tool
speed. Do not go so fast or use so much
pressure that the bit heats up. This can
damage the bit and create an irregular hole.
For hard metal, use cutting oil to keep the
bit cool.
6.
Since drilling in metal is a slow operation,
you may lock the Trigger in the ON position
to maintain a constant speed and reduce
fatigue.
7.
When drilling large holes in metal, start by
drilling a smaller pilot hole, then using a
larger bit for the final size hole.

Wood Drilling

1.
Use high speed bits or bits specially
designed for wood drilling, such as brad
point, spade bits, forstner bits, etc.
2.
Secure the work piece to keep it from
moving during the drilling operation.
Page 8

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