KAT DRILLING
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Our drifting and tunnelling tools are engineered for high-performance drilling, including rods, shank adapters, couplings, and bits. We provide seven primary thread types: R25, R28, SR28, R32, SR35, and R35. With a diameter range of 38-127mm, these tools are compatible with button bits, cross bits, and reaming products.
| Type | Carbide Gauge | Carbide Front | Dimensions (D) | Flushing Hole | ||||
|---|---|---|---|---|---|---|---|---|
| No. | mm | No. | mm | mm | inch | Front | Side | |
| R22/SR22 | 5 | 7 | 2 | 7 | 32 | 1 1/4" | 1 | 1 |
| R22/SR22 | 5 | 8 | 2 | 7 | 34 | 1 11/32" | 1 | 1 |
| R22/SR22 | 5 | 8 | 2 | 7 | 35 | 1 3/8" | 1 | 1 |
| R22/SR22 | 5 | 9 | 2 | 7 | 38 | 1 1/2" | 1 | 1 |
| R22/SR22 | 5 | 10 | 2 | 9 | 45 | 1 3/4" | 1 | 1 |
| Type | Carbide Gauge | Carbide Front | Dimensions (D) | Flushing Hole | ||||
|---|---|---|---|---|---|---|---|---|
| No. | mm | No. | mm | mm | inch | Front | Side | |
| R25/SR25 | 5 | 7 | 2 | 7 | 33 | 1 5/16" | 1 | 1 |
| R25/SR25 | 5 | 9 | 2 | 7 | 38 | 1 1/2" | 1 | 1 |
| R25/SR25 | 5 | 10 | 2 | 9 | 45 | 1 3/4" | 1 | 1 |
| R25/SR25 | 6 | 10 | 3 | 9.5 | 51 | 2" | 3 | 1 |
| R25/SR25 | 6 | 10 | 3 | 10 | 60 | 2 3/8" | 3 | 1 |
