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Adjusting fastening torque
The fastenina toraue can be adiusted in six
-
stages by turning the adjusting ring so that
the pointer on the adjusting ring points t o
a number on the tool body. The fastening
torque is minimum when the pointer points
to the number 1 and maximum when it
points to the
-8-
marking. The clutch
will slip a t varying torque levels when the
pointer i s set
a t
the numbers 1 to 5. The
clutch is designed not to slip a t the
-8-
marking.
Pointer
1
Drill marking
Before actual operation, drive
a
trial screw into your material or a piece of duplicate
material to determine which torque level is required
for a
particular application.
NOTE
:
The adjusting ring cannot be locked with the pointer positioned half-way between the
numbers.
Nominal diameter of
wood screw Imm)
Screwdriving operation
Place the point of the driver bit in the
screw head and apply pressure to the tool.
Start the tool slowly and then increase the
speed gradually. Release the trigger as soon
as
the clutch cuts in.
Recommended size
of Dilot hole lmm)
NOTE :
Make sure that the driver bit is inserted straight in the screw head, or the screw and/or
bit may be damaged.
3.8 15/32")
4.5 (11/64"1
4.8 13/16")
s
When driving wood screws, predrill pilot
holes
to
make driving
easier
and to pre-
vent splitting of the workpiece. See the
chart.
2.5
-
2.8 (3132"
-
7/64")
2.9
-
3.2 (7164''
-
118")
3.1
-
3.4 1118"
-
9164"l
5 5 17/32")
5 8 (7132")
6 1 (15164")
3 1 (118")
1
2.0
-
2.2 15/64"
-
3132")
3.5 (9164")
I
2.2
-
2.5 13132"
-
3/32")
3 7
-
3 9 (9164"
-
5132")
4 0
-
4 2 15132"
-
11 164")
4 2
-
4 4 111164'
-
11/64'1
5.1 113164")
I
3.3
-
3.6 1118"
-
9/64"1
9
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