KAT DRILLING
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Drifting and tunnelling tools include rods, shank adapters, couplings and bits. We provide 7 main thread types: R22, R25, R28, SR28, R32, SR35, and R35. With diameters ranging from 38-127mm, these tools are compatible with button bits, cross bits, and reaming products.
| Carbide Dimension | Dimensions D | Flushing Hole | |||||
|---|---|---|---|---|---|---|---|
| Gauge | Front | [mm] | [in] | Front | Side | ||
| 6 | 10 | 3 | 10 | 57 | 2 1/4" | 3 | 1 |
| 6 | 11 | 3 | 11 | 64 | 2 1/2" | 3 | 1 |
| 6 | 12.7 | 3 | 12.7 | 76 | 3" | 3 | 1 |
| 6 | 14 | 4 | 14 | 89 | 3 1/2" | 3 | 0 |
| 8 | 11 | 6 | 11 | 76 | 3" | 2 | 0 |
| 8 | 14 | 6 | 14 | 102 | 4" | 2 | 0 |
| 9 | 11 | 8 | 10 | 89 | 3 1/2" | 3 | 1 |
| Drop Center | |||||||
| 6 | 10 | 3/1 | 10/9 | 64 | 2 1/2" | 3 | 0 |
| 6 | 12.7 | 3/1 | 11/9.5 | 76 | 3" | 3 | 0 |
| 8 | 14 | 4/3 | 12.7/11 | 102 | 4" | 4 | 0 |
