China Tungsten Carbide Premium Steel Impacting Air Button Drill Bit, Find details about China DTH Drill Bits, Mining Drill Bits from Tungsten Carbide Premium Steel Impacting Air Button Drill Bit
head shape | head diameter/mm | shank length /mm | spline | weight/kg |
double huage button concave face | 450 | 405 | 12 | 291.5 |
double huage button concave face | 500 | 405 | 12 | 340 |
double huage button concave face | 550 | 405 | 12 | 397 |
double huage button concave face | 600 | 405 | 12 | 469 |