B Manual tongs are tools for lifting and unloading various pipe strings and tools during drilling and workover operations. By changing the tongs head and steps, the tongs can meet the needs of lifting and unloading of pipes of different sizes. The products shall be designed and manufactured according to the requirements of API Spec 7K.
| 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) |
