China Prodrill Button Bits Insert DTH Hammer Bit for Mining, Find details about China DTH Bit, Down The Hole Bit from Prodrill Button Bits Insert DTH Hammer Bit for Mining
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 |