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8 mm 996134 M5 (3/16") 5/16" (8 mm) B
10 mm 996135 M6 (1/4") 3/8" (10 mm) B
12 mm 996136 M8 (5/16") W5/16"
15/32" (12 mm)
C
13 mm 996137 M8 (5/16") 1/2" (13 mm) B
14 mm 996138 M10 (3/8")
9/16" (14 mm)
B
16 mm 996139 M10 (3/8") 5/8" (16 mm) D
17 mm 996140 M10 (3/8")
M12 (15/32")
W3/8"
21/32" (17 mm)
D
18 mm 996141
M12 (15/32")
23/32" (18 mm)
D
19 mm 996142
M12 (15/32")
W7/16"
3/4" (19 mm)
D
Table 7
Code
No.
Main Socket
Dimensions
3/8"
(9.5 mm)
Long
Socket
Part Name ISO ISO Inch
(ordinary) (small) bolts
Square head
drive dimen-
sions S
Hexagonal
width across
flats H
Form
2-3/8" 15/32" 1-7/8" 1/2"
(60 mm) (12 mm) (48 mm) (13 mm)
2-3/8" 15/32" 1-7/8" 5/8"
(60 mm) (12 mm) (48 mm) (16 mm)
2-3/8" 9/16" 1-7/8" 23/32"
(60 mm) (14 mm) (48 mm) (18.4 mm)
2-3/8" 9/16" 1-7/8" 3/4"
(60 mm) (14 mm) (48 mm) (18.9 mm)
2-3/8" 19/32" 1-7/8" 49/64"
(60 mm) (15 mm) (48 mm) (19.5 mm)
2-3/8" 19/32" 1-7/8" 15/16"
(60 mm) (15 mm) (48 mm) (24 mm)
2-3/8" 19/32" 1-7/8" 1"
(60 mm) (15 mm) (48 mm) (25 mm)
2-3/8" 5/8" 1-7/8" 1-1/32"
(60 mm) (16 mm) (48 mm) (26 mm)
2-3/8" 21/32" 1-7/8" 1-1/16"
(60 mm) (17 mm) (48 mm) (27.5 mm)
LL1L2øF
Suitable Bolt Diameter
<For WR9DM2>
4. Extension bar: (WR12DM2, WR9DM2)
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.
Fig. 35
5. Universal joint: (WR12DM2, WR9DM2)
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.
Fig. 36
Code No. Dimention B, S Model
873633 1/2" (12.7 mm) WR12DM2
996143 3/8" (9.5 mm) WR9DM2
Code No. Dimention B, S Model
992610 1/2" (12.7 mm) WR12DM2
996147 3/8" (9.5 mm) WR9DM2
s
B
B
S