We can provide a full range of rock bits. We also supply DTH hammer, drilling rig,drilling pipe and so on.
Diameter | IADC Code | API reg pin | |
Inch(in) | Metric(mm) | ||
3 7/8 | 98 2/5 | 517/617 | 2 3/8 |
4 5/8 | 117 2/5 | 517/537 | 2 7/8 |
4 5/8 | 117 2/5 | 617 | 2 7/8 |
4 3/4 | 120 1/2 | 517/537 | 2 7/8 |
5 7/8 | 149 1/5 | 517/537 | 3 1/2 |
6 | 152 2/5 | 517/537 | 3 1/2 |
6 | 152 2/5 | 617/637 | 3 1/2 |
6 1/2 | 165 | 517/537 | 3 1/2 |
6 1/2 | 165 | 617 | 3 1/2 |
7 1/2 | 190 1/2 | 517/537 | 4 1/2 |
7 7/8 | 200 | 517 | 4 1/2 |
8 1/2 | 216 | 517/537 | 4 1/2 |
8 1/2 | 216 | 617/637 | 4 1/2 |
8 3/4 | 222 1/5 | 517/537 | 4 1/2 |
9 1/2 | 241 1/3 | 517/537/ | 6 5/8 |
9 1/2 | 241 1/3 | 617/637 | 6 5/8 |
9 5/8 | 244 2/5 | 517/537 | 6 5/8 |
9 7/8 | 250 4/5 | 517/537 | 6 5/8 |
12 1/4 | 311 1/5 | 517/537 | 6 5/8 |
12 1/4 | 311 1/5 | 617/637 | 6 5/8 |
14 3/4 | 374 3/5 | 517 | 7 5/8 |
17 1/2 | 444 1/2 | 517/537 | 7 5/8 |