DB Type Manual Tongs

Main Technical Features

● Manual tongs are tools used to drill and unscrew various types of pipe strings and tools during

drilling and workover operations. By changing the lug jaws, the requirements of the different

sizes of pipe diameters could meet.

● Products are designed and manufactured in accordance with API Spec 7K specifications.

No. of Latch Lug jaw	No.of Hinge Pin Hole	Size Ranges		Rated Torque (kN.m)
No. of Latch Lug jaw	No.of Hinge Pin Hole	in	mm	Rated Torque (kN.m)
1＃	Ⅰ	3¹/₂～6	88.9～152	90
	Ⅱ	5³/₄～7	146～178
	Ⅲ	6⁵/₈～8¹/₄	168～210
2#	Ⅰ	8～9⁵/₈	203～244
2#	Ⅱ	10⁵/₈～11¹/₄	270～286
3#	Ⅰ	11³/₄～12³/₄	298～324	55
3#	Ⅱ	13³/₈～14³/₈	340～365
4#	Ⅱ	16～17	406～432