 |
| |||
| jack bit; rock bit | |||
| removable drill bit | |||
| detachable bit; removable rock bit; shoulder-type bit (навинчиваемая на штангу) | |||
| interchangeable bit | |||
| shoulder bit (навинчивающаяся на штангу) | |||
| detachable drill bit | |||
| |||
| detachables | |||
| съёмная буровая коронка: 13 phrases in 6 subjects |
| Construction | 1 |
| Makarov | 1 |
| Mining | 6 |
| Oil / petroleum | 3 |
| Oil and gas technology | 1 |
| Technology | 1 |