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Table 2
Square
head drive
Part Name
Code No.
dimensions
S (mm)
12 mm
13 mm
14 mm
17 mm
17 mm
19 mm
Long
12.7
19 mm
Socket
21 mm
21 mm
21 mm
22 mm
24 mm
26 mm
3. Extension bar: Code No. 873633
The extension bar is convenient for working in very
restricted spaces or when the socket provided cannot
reach the bolt to be tightened.
CAUTION
When the extension bar is used, the tightening
torque is reduced slightly compared with the
ordinary socket.
4. Universal joint: Code No. 992610
The universal joint is convenient for impacting nuts
when there is an angle between the socket and
wrench, or when working in a very narrow space.
5. Duct Socket
This is used for tightening bolts and nuts on flange
sections of air conditioners, type ducts, etc.
Code No.
993658
992613
992615
9
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Suitable Bolt Diameter
High
ISO
tension (ordinary) (small)
955138
955139
M8
955140
955141
M10
955149
M10
955142
M12
955150
M12
955143
955151
991480
955144
M12
M14
955146
M16
955147
Hexagonal width
across flats (mm)
12
13
14
Hexagonal
width across
ISO
Inch
flats H (mm)
bolts
M8
W5/16"
12
13
M10
14
M12
W3/8"
17
M12
W3/8"
17
M14
W7/16"
19
M14
W7/16"
19
W1/2"
21
W1/2"
21
W1/2"
21
M16
22
M18
24
W5/8"
26
6. Corner attachment (Model EW-14R)
Use this attachment only when the machine is
applied to the nut or bolt at the right angle.
7. Bit adaptor: Code No. 991476
This is used for tightening small screws (M6 – M8).
NOTE
(1) This adaptor is set only on the anvil (drive angle)
of the main unit. The bit adapter cannot be attached
to the special accessory anvil (square drive).
(2) Before starting work with the adapter, tighten a few
screws with it to make sure it's tightening with the
appropriate torque.
(3) Tightening speed will be greatly reduced when
driving wood, tapping or other similar screws.
Applicable plus driver bit
Bit No.
Bit No.
No. 2
No. 3
Main Socket
Dimensions (mm)
Form
L
L1
L2
B
52
20
34
B
52
20
34
B
52
20
34
B
52
24
34
B
75
24
57
B
52
24
34
B
75
24
57
D
52
24
34
D
75
24
57
D
125
24
107
D
52
24
34
D
52
25
34
D
75
25
57
L
6.35
L (mm)
Code No.
45
955229
70
955654
45
955230
70
955655
øF
20
21.5
22
25
25
28
28
31
31
31
32.5
34
38
