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Drifting and tunnelling tools include rods, shank adapters, couplings and bits. We provide 7 main thread types: R25, R28, SR28, R32, SR35, and R35. With diameters ranging from 38-127mm, these tools are highly compatible with button bits, cross bits, and reaming products.
| Product Type | Carbide Dimension | Dimensions D | Flushing Hole | |||||
|---|---|---|---|---|---|---|---|---|
| Gauge | Front | |||||||
| [No.] | [mm] | [No.] | [mm] | [mm] | [in] | Front | Side | |
| Button Bit | 6 | 14 | 4 | 14 | 89 | 3 1/2" | 3 | 0 |
| Button Bit | 8 | 12.7 | 6 | 11 | 82 | 3 1/4" | 2 | 1 |
| Button Bit | 8 | 14 | 6 | 14 | 102 | 4" | 2 | 0 |
| Button Bit | 8 | 16 | 6 | 14 | 115 | 4 1/2" | 2 | 0 |
| Button Bit | 8 | 16 | 8 | 14 | 127 | 5" | 2 | 0 |