Type Q86-324/75(3 3/8-12 3/4) manual tong is an essential tool in oil drilling operation to fasten or remove the screws of drill pipe and casing joint or coupling. It can be adjusted by changing latch lug jaws and latch steps.
| No. of latch lug jaws | Handle shoulder | Handle OD mm(in) | Max. Torque KN.m |
| 5a | 1 | 86-105(3 3/8-4 1/8) | 55 |
| 2 | 105-133(4 1/8-5 1/4) | ||
| 5b | 1 | 108-133(4 1/8-5 1/4) | 75 |
| 2 | 127-146(5-5 3/4) | ||
| 3 | 152-171(6-6 3/4) | ||
| 5b-1 | 1 | 133-146(5-6) | 75 |
| 2 | 146-168(6-7) | ||
| 3 | 168-208(7-8) | ||
| 5c | 1 | 168-187(6 5/8-7 3/8) | 75 55 |
| 2 | 187-203(7 3/8-8) | ||
| 3 | 216-219(8 1/2-8 2/8) | ||
| 5b | 1 | 216-244(8 1/2-9 5/8) | 55 |
| 2 | 270-273(10 5/8-10 3/4) | ||
| 5e | 1 | 298(11 3/4) | 55 |
| 2 | 324(12 3/4) |
