Tongs za Mwongozo ni zana muhimu zinazotumiwa kutengeneza na kuvunja mabomba. Kubadilisha taya za lug na hatua za latch zinaweza kurekebisha ukubwa tofauti wa kushughulikia wa koleo. Zimeundwa na kutengenezwa kulingana na API Spec 7K Specification kwa ajili ya kuchimba visima na vifaa vya kuhudumia visima.
| No.of Latch Lug taya | Nambari ya Shimo la Bawaba | Saizi ya Ukubwa | Iliyokadiriwa Torque kN·m |
|
| katika | mm | |||
| 1# | Ⅰ | 3-1/2~6 | 88.9-152 | 90 |
| Ⅱ | 5-3/4~7 | 146-178 | ||
| Ⅲ | 6-5/8~8-1/4 | 168-210 | ||
| 2# | Ⅰ | 8-9-5/8 | 203-244 | |
| Ⅱ | 10-5/8~11-1/4 | 270~286 | ||
| 3# | Ⅰ | 11-3/4~12-3/4 | 298~324 | 55 |
| Ⅱ | 13-3/8~14-3/8 | 340~365 | ||
| 4# | Ⅱ | 16-17 | 406-432 | |