Type B manual tongs are necessary tools to make up and break out pipes. Changing lug jaws and latch steps can adjust different handling sizes of the tongs.

1# latch lug jaw size range: 3 1/2"-5". Rated torque: 55KN.m.

2# latch lug jaw size range: 4 1/4"-6 3/4". Rated torque: 75KN.m.

3# latch lug jaw size range: 6 5/8"-9". Rated torque: 75KN.m.

4# latch lug jaw size range: 9"-10 3/4". Rated torque: 55KN.m.

5# latch lug jaw size range: 11 3/4". Rated torque: 55KN.m.

6# latch lug jaw size range: 12 3/4"-13".  Rated torque: 40KN.m.

7# latch lug jaw size range: 13 3/8".  Rated torque: 40KN.m.