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Bit angle
(when chipping, scaling or demolishing)
1
2
The bit can be secured at 12 different angles. To change
the bit angle, depress the lock button and rotate the
change lever so that the pointer points to the "O" symbol.
Turn the bit to the desired angle.
Depress the lock button and rotate the change lever so
that the pointer points to the
that the bit is securely held in place by turning it slightly.
Depth gauge
1
3
The depth gauge is convenient for drilling holes of uni-
form depth. Insert the depth gauge into the hole in the
grip base. Adjust the depth gauge to the desired depth
and then tighten the clamp screw to secure the depth
gauge.
NOTE:
•
The depth gauge cannot be used at the position
where the depth gauge strikes against the tool
body.
003171
1. Lock button
2. O symbol
symbol. Then make sure
003175
003182
1. Depth gauge
2
2. Clamp screw
3. Grip base
Dust cup (optional accessory)
Use the dust cup to prevent dust from falling over the tool
and on yourself when performing overhead drilling opera-
tions. Attach the dust cup to the bit as shown in the fig-
ure. The size of bits which the dust cup can be attached
to is as follows.
Dust cup 5
Dust cup 9
OPERATION
Hammer drilling operation
Set the change lever and the shift lever to the
Position the bit at the desired location for the hole, then
pull the switch trigger. Do not force the tool. Light pres-
sure gives best results. Keep the tool in position and pre-
vent it from slipping away from the hole.
Do not apply more pressure when the hole becomes
clogged with chips or particles. Instead, run the tool at an
idle, then remove the bit partially from the hole. By
repeating this several times, the hole will be cleaned out
and normal drilling may be resumed.
CAUTION:
•
There is a tremendous and sudden twisting force
exerted on the tool/bit at the time of hole break-
through, when the hole becomes clogged with
chips and particles, or when striking reinforcing
rods embedded in the concrete. Always use the
side grip (auxiliary handle) and firmly hold the tool
by both side grip and switch handle during
operations. Failure to do so may result in the loss of
control of the tool and potentially severe injury.
7
003186
1. Dust cup
1
Bit diameter
6 mm (1/4") - 14.5 mm (9/16")
12 mm (15/32") - 16 mm (5/8")
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symbol.
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