Type Q89-432/90(3 1/2-17in)DB Manual Tong is used foe making up or breaking out the screws of drill tools and casing joint or coupling. It can be adjusted by changing latch lug jaws and handling shoulders.
No.of Latch Lug Jaws
Size Range
Rated Torque
in
mm
KN·m
1#
3 1/2-8 1/4
88.9-210
90
2#
8-11 1/4
203-286
3#
11 3/4-14 3/8
298-365
55
4#
16-17
406-432
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