Sandvik drifting and tunneling tools
| Threads | Diameter (inch) | Hole range (mm) |
|---|---|---|
| R25 | 1" | 33 - 89 |
| R28 | 1 1/8" | 38 - 89 |
| R32 | 1 1/4" | 43 - 127 |
| Alpha 330 | - | 43 - 127 |
| R35 | 1 3/8" | 48 - 127 |
| R35 Extra | 1 3/8" | 54 |

| Threads | Diameter (inch) | Hole range (mm) |
|---|---|---|
| R25 | 1" | 33 - 89 |
| R28 | 1 1/8" | 38 - 89 |
| R32 | 1 1/4" | 43 - 127 |
| Alpha 330 | - | 43 - 127 |
| R35 | 1 3/8" | 48 - 127 |
| R35 Extra | 1 3/8" | 54 |
