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Adjusting fastening torque
The fastening torque can be adjusted in six
stages
by turning the adjusting ring
so
that
the pointer on the adjusting ring points to
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
a\-
marking. The clutch
will slip
at
varying torque
levels
when the
pointer
is
set
at
the numbers
1
to
5.
The
clutch
is
designed not to slip
at
the
-8-
marking.
When driving wood screws, predrill pilot
Nominal diameter
of
wood
screw
Imm)
3.1 11/8”l
3.5 19/64”)
chart.
3.8 (5132”)
holes to make driving easier and to pre-
vent splitting of the workpiece. See the
4.5 I1 1/64”)
4.8 13/16”l
5.1 113/64”)
5.5 17/32”)
5.8 17/32”)
6.1 115164“)
6.4 11/4”l
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.
Recommended size
of
pilot hole
lmml
2.0
~
2.2
15/64”
-
3/32’,)
2.2
-
2.5 13/32”
-
3/32,’)
2.5
-
2.8
f3/32”
-
7/64”)
2.9
-
3.2 17/64”
-
1/8”l
3.1
~ 3.4 11/8”
-
9/64”1
3.3
-
3.6 1118” ~ 9164”l
3.7
~ 3.9 19/64”
-
5/32”)
4.0
-
4.2 f5/32”
-
11/64”)
4.2
~ 4.4 111164’ ~ 11/64“)
4.4
~ 4.8 111/64”
-
6/32’,)
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.
10