China High Penetration Rate DTH Drilling Bits for Mine, Find details about China Tapered Button Bit, Drill Bits from High Penetration Rate DTH Drilling Bits for Mine
Specification of dth hammer button bits: | Diameter: (mm) |
1-2 inch low pressure DTH bits | 64/70/76/80/82/90 |
3 inch high Air pressure DHT bits | 85 / 90 / 95 / 100 / 105 |
4 inch high Air pressure DHT bits | 105 / 110 / 115 / 120 / 127 |
5 inch high Air pressure DHT bits | 133 / 140 / 146 / 152 / 165 |
6 inch high Air pressure DHT bits | 152 / 165 / 178 / 190 / 203 |
8 inch high Air pressure DHT bits | 195 / 203 / 216 / 254 / 305 |
10, 12 inch high Air pressure DTH bits | 254/305/318/330/356/381 |