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Reaming bits were widely used in quarrying or mining for blast hole drilling
Integral reaming button bits for R32 R38
Reaming bits were widely used in quarrying or mining for blast hole drilling, with pilot adaptors, the drilling direction can be ensured and accurate. Pilot holes are drilled depth and then reamed out to a larger diameter in a second pass required when hole diameter exceeds the capabilities of the rock drill and drilling tools available.
| Integral reaming button bits | 89 | 12*Φ11mm | 2*Φ11mm+1*Φ10mm | R32/R38*12.7 | KZQ89 |
| 102 | 12*Φ12mm | 2*Φ12mm+1*Φ10mm | R32/R38*12.7 | KZQ102-1 | |
| 102 | 12*Φ14mm | 2*Φ10mm+1*Φ10mm | R32/R38*12.7 | KZQ102-2 | |
| 127 | 8*Φ14mm | 8*Φ12mm+2*Φ12mm | R38*12.7 | KZQ127 |
