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6
Use only the driver bit or socket bit shown in the figure.
Do not use any other driver bit or socket bit.
To install the bit, pull the sleeve in the direction of the
arrow and insert the bit into the sleeve as far as it will go.
Then release the sleeve to secure the bit.
To remove the bit, pull the sleeve in the direction of the
arrow and pull the bit out firmly.
NOTE:
• If the bit is not inserted deep enough into the
sleeve, the sleeve will not return to its original
position and the bit will not be secured. In this case,
try re-inserting the bit according to the instructions
above.
Hook
The hook is convenient for temporarily hanging the tool.
This can be installed on either side of the tool.
To install the hook, insert it into a groove in the tool hous-
ing on either side and then secure it with a screw. To
remove, loosen the screw and then take it out.
OPERATION
The proper fastening torque may differ depending upon
the kind or size of the screw/bolt, the material of the
workpiece to be fastened, etc. The relation between fas-
tening torque and fastening time is shown in the figures.
Hold the tool firmly and place the point of the driver bit in
the screw head. Apply forward pressure to the tool to the
extent that the bit will not slip off the screw and turn the
tool on to start operation.
NOTE:
• Use the proper bit for the head of the screw/bolt
that you wish to use.
• When fastening screw M8 or smaller, carefully
adjust pressure on the switch trigger so that the
screw is not damaged.
• Hold the tool pointed straight at the screw.
• If you tighten the screw for a time longer than
shown in the figures, the screw or the point of the
driver bit may be overstressed, stripped, damaged,
etc. Before starting your job, always perform a test
operation to determine the proper fastening time for
your screw.
1. Bit
2. Sleeve
1. Hook
2. Screw
3. Groove
1
2
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2
3
1
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120
100
80
60
40
20
0 1.0 2.0 3.0
M14
M12
M10
M8
(M14)
(M12)
(M10)
(M8)
Standard bolt
N m
Fastening torque
Fastening time
(S)
Proper fastening torque
(ft lbs)
(14)
(29)
(43)
(58)
(72)
(87)
(9/16")
(9/16")
(1/2")
(1/2")
(3/8")
(3/8")
(5/16")
(5/16")
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120
(87)
100
(72)
80
(58)
60
(43)
40
(29)
20
(14)
0 1.0 2.0 3.0
M12
M10
M8
(M12)
(M10)
(M8)
N m
Fastening torque
Fastening time
Proper fastening torque
(ft lbs)
High tensile bolt
(S)
(1/2")
(1/2")
(3/8")
(3/8")
(5/16")
(5/16")
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