KAT DRILLING
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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. These tools are compatible with button bits, cross bits, and reaming products.
| Button Bit Type | Gauge Carbide | Front Carbide | Dimensions D | Flushing Hole | ||||
|---|---|---|---|---|---|---|---|---|
| No. | mm | No. | mm | mm | in | Front | Side | |
| Standard | 5 | 9 | 2 | 9 | 41 | 1 5/8" | 1 | 1 |
| Standard | 5 | 10 | 2 | 9 | 45 | 1 3/4" | 1 | 1 |
| Standard | 5 | 11 | 2 | 10 | 51 | 2" | 1 | 1 |
| Heavy Duty | 6 | 11 | 2 | 9 | 51 | 2" | 2 | 0 |
