Tianjin Grand Construction Machinery Technology Co., Ltd. deeply engaged in rock breaking tools more...
Compared to roller cone bits, hybrid drill bits can increase ROP, requiring less weight on bit and minimizing bit bounce.View More
It is recommended to drill shale, mudstone, cementitious sandstone and medium compressive strength carbonate rock with interlayer.View More
It can drill medium to medium hard strata. It is recommended to drill shale, mudstone, Cemented Sandstone and carbonate rock with medium compressive strength.View More