KAT DRILLING
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Our drifting and tunnelling tools include high-performance rods, shank adapters, couplings, and bits. We support seven primary thread types: R25, R28, SR28, R32, SR35, and R35. With diameters ranging from 38-127mm, these tools are ideally suited for use with button bits, cross bits, and various reaming products.
| Button bit R38 | Carbide Dimension | Dimensions D | Flushing Hole | |||||
|---|---|---|---|---|---|---|---|---|
| Gauge | Front | [mm] | [in] | Front | Side | |||
| [No.] | [mm] | [No.] | [mm] | |||||
| Standard | 8 | 10 | 4 | 10 | 64 | 2 1/2" | 2 | 0 |
| Standard | 8 | 11 | 6 | 11 | 76 | 3" | 2 | 0 |
| Drop Center | 6 | 10 | 3/1 | 10/9 | 64 | 2 1/2" | 3 | 0 |
| Drop Center | 6 | 14 | 3/2 | 12.7/9.5 | 89 | 3 1/2" | 3 | 0 |
| Button bit T38 | Carbide Dimension | Dimensions D | Flushing Hole | |||||
|---|---|---|---|---|---|---|---|---|
| Gauge | Front | [mm] | [in] | Front | Side | |||
| [No.] | [mm] | [No.] | [mm] | |||||
| Standard | 6 | 10 | 3 | 10 | 57 | 2 1/4" | 3 | 1 |
| Standard | 6 | 12.7 | 3 | 12.7 | 76 | 3" | 3 | 1 |
| Heavy Duty | 6 | 12.7 | 5 | 11 | 70 | 2 3/4" | 1 | 2 |
