Installing Bits into Keyed Chucks (Fig. 1)
1. Unplug tool.
2. Open the chuck jaws
wide enough to insert the
bit. Be sure the bit shank
and chuck jaws are clean.
Dirt particles may prevent
the bit from lining up prop-
erly.
3. Insert the bit into the chuck. Center the bit in the chuck jaws
and lift it about 1/16” off of the bottom. Then, tighten the
chuck jaws by hand to align the bit.
4. Place the chuck key in each of the three holes in the chuck,
turning it clockwise as shown. Tighten securely.
5. To remove the bit, insert the chuck key into one of the
holes in the chuck and turn it counterclockwise.
Bit Selection
Use sharp bits. Sharp bits are less likely to bind when drilling.
Use the proper bit for the job. There are many types of bits
designed for specific purposes. Check the informa
tion on the bit’s packaging for proper usage.
Do not use bits larger than the rated capacity of the drill.
Gear damage or motor overload may result. See
Specifications on page 4.
Removing and replacing
Quik-Lok®Cords (Fig. 2)
MILWAUKEE’S
exclusive
Quik-Lok® Cords provide
instant field replacement or
substitution.
1. Unplug tool from electri-
cal outlet.
2. To remove the Quik-Lok®
Cord, turn the cord nut 1 /4
turn to the left and pull it out.
3. To replace the Quik-Lok Cord, align the connector keyways
and push the connector in as far as it will go. Turn the cord nut
1/4 to the right to lock.
(See Fig. 2)
Pipe Handle (Fig. 3)
The pipe handle may be used on either side of the tool. Thread
pipe handle into one of the threaded holes in the motor hous-
ing.
(See Fig. 3)
Spade Handle (Fig. 4)
The spade handle can be attached to the tool
in three positions as shown in Fig. 4.
Remove the hex head screws which secure
the handle. Remove the handle and move it
to the desired position. To mount the handle
in position C, it is necessary to reverse the
mounting holes by turning the handle
around.
Milwaukee Tool
Heavy-Duty Hole Hawg®
Model Numbers: 1670-1, 1675-1, 1678-20, 1679-20
Operating Instructions
Page 1
RenTrain INC
RenTrain INC
To reduce the risk of injury, always unplug tool
before attaching or removing accessories. Use
only specifically recommended accessories.
Others may be hazardous.
WARNING!
ASSEMBLY
Fig. 1
Fig. 2
Fig. 3
Fig. 4
A
B
C
