China Pneumatic Down Hole Bit DTH Button Bit for Rock Drilling, Find details about China DTH Bit Manufacturer, Drill Bit 6inch from Pneumatic Down Hole Bit DTH Button Bit for Rock Drilling
head shape | head diameter/mm | shank length /mm | spline | weight/kg |
concave face | 154 | 231 | 12 | 21.6 |
flat face | 165 | 231 | 12 | 21.8 |
concave face | 171 | 231 | 12 | 23.3 |
concave face | 178 | 231 | 12 | 24.3 |
concave face | 190 | 231 | 12 | 25.5 |
concave face | 203 | 231 | 12 | 28.7 |