China 203mm Hammer DTH Drill Bit with Concave Face, Find details about China DTH Bit Supplier, Rock Drill Bit from 203mm Hammer DTH Drill Bit with Concave Face
head shape | head diameter/mm | shank length /mm | spline | weight/kg |
concave face | 203 | 350 | 10 | 48.5 |
concave face | 216 | 350 | 10 | 52.1 |
concave face | 230 | 350 | 10 | 54.8 |
concave face | 235 | 350 | 10 | 55.5 |
concave face | 254 | 350 | 10 | 62.4 |
concave face | 275 | 350 | 10 | 69 |
concave face | 305 | 350 | 10 | 77.6 |