Q 3 ⅜ *2 ¾ / *5 (B type)manual tong is an essential tool in oil
drilling operation to fasten or remove the screws of drill pipe and
casing joint or coupling. Applicable column range: 3 ⅜ in ~ *2 ¾
in. maximum torque is *5kN • m. Column and torque of different
diameters can be adjusted by changing the latch lug jaws or latch
steps.
