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Drifting and tunnelling tools include rods, shank adapters, couplings and bits. We provide a comprehensive range of 7 primary threads: R25, R28, SR28, R32, SR35, and R35. With diameters ranging from 38mm to 127mm, these tools are compatible with button bits, cross bits, and reaming products.
| Carbide Dimension | Dimensions D | Flushing Hole | |||||
|---|---|---|---|---|---|---|---|
| Gauge | Front | [mm] | [in] | Front | Side | ||
| [No.] | [mm] | [No.] | [mm] | ||||
| 6 | 14 | 4 | 14 | 89 | 3 1/2" | 3 | 0 |
| 8 | 12.7 | 6 | 11 | 82 | 3 1/4" | 2 | 1 |
| 8 | 12.7 | 6 | 11 | 85 | 3 3/8" | 2 | 1 |
| 8 | 12.7 | 6 | 12.7 | 89 | 3 1/2" | 2 | 0 |
| 8 | 14 | 6 | 14 | 102 | 4" | 2 | 0 |
| 8 | 16 | 6 | 14 | 115 | 4 1/2" | 2 | 0 |
| 8 | 16 | 8 | 14 | 127 | 5" | 2 | 0 |
| 9 | 11 | 8 | 10 | 89 | 3 1/2" | 3 | 1 |
| 9 | 12.7 | 8 | 12.7 | 102 | 4" | 3 | 1 |
| 10 | 14 | 9 | 12.7 | 115 | 4 1/2" | - | - |