1.Applicable pipe:3.1/2-13.3/8" 2.Maximum torque:75kN.m 3.It is designed and manufactured as API 7K standard.

Type SB mannual tongs is the necessary tools used to install,dismantle drill pipes,dril collars,casing head or collar thread during well drilling and repairing operation for oil,Its buckle joint size can be changed through changing latch lug and latch step.Applicable pipe is 3.1/2-13.3/8".Maximum torque is 75kN.m.It is designed and manufactured as API 7K standard.

No. of Latch Lug Jaw	Latch Step	Size Range(MM)	Rated Torque(KN.M)
1#	1	88.9-104.78	75
1#	2	104.78-127	75
2#	1	107.95-133.35	75
2#	2	127-146.05	75
2#	3	152.4-171.45	75
3#	1	168.28-184.15	75
3#	2	187.33-203.2	75
3#	3	215.9-228.6	75
4#	1	228.6-244.48	55
4#	2	269.6-273.05	55
5#	1	298.45	55
63	1	232.85-330.2	40
7#	1	339.73	40