Adjusting the fastening torque
The fastening torque can be adjusted in-
finitely from approx. 5 kg
cm (0.4 ft
cm (2.7 ft
To adjust it, loosen the two screws and
turn the adjusting ring. Then tighten the
screws to secure the adjusting ring. Refer
to the table below for relation between the
numbers on the adjusting ring and the fas-
tening torque to be obtained.
Numbers on adjusting ring
Fastening torque to be obtained
5 kg cm (0
10 k g cm (0 7
27 kg cm (2 0 ft Ibs)
37 kg cm (2 7 ft Ibs)
r ' 5
The proper fastening torque may differ depending upon the kind or size of screws, the
type of materials to be fastened, the condition of the threads, etc. Before starting your job,
test operation to verify adequate fastening torque.
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
As soon as the screw becomes tight, the clutch will cut in and the motor will stop
automatically. Release the trigger.
*Hold the tool pointed straight at the screw, or the screw and/or bit may be damaged.
*If the motor will not start even after you pull the trigger, release the trigger. Then pull the
trigger again after turning the bit slightly with your fingers.