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. With diameters ranging from 38-127mm, these are ideally suited for use with button bits, cross bits, and reaming products.
| Type | Carbide Dimension | Dimensions D | Flushing Hole | |||||
|---|---|---|---|---|---|---|---|---|
 |
Gauge No. | Gauge mm | Front No. | Front mm | mm | inch | Front | Side |
| 5 | 11 | 2 | 9 | 48 | 1 7/8" | 1 | 1 | |
 |
6 | 9.5 | 3 | 8 | 45 | 1 3/4" | 3 | 1 |
| 6 | 10 | 3 | 9 | 48 | 1 7/8" | 3 | 1 | |
