China Quarry Water Well Button Drill Bits for Mining, Find details about China Drill Bits for Well, Hammer Bit for Water from China Quarry Water Well Button Drill Bits for Mining
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 |