Process of Great Rock Reamer-Robot Welding

Overview 120 ° U-shaped Roller bitGREAT has customized manufacture several types of roller bit . The traditional roller bit was cut by tricone bit . So it is including No.1 ,No.2, No.3 Cone cutters ....

Raise Boring Cutters OverviewThe raise boring cutters is mainly used for the construction of vertical shafts, ventilation shafts inclined shafts, pressure regulating shafts and escape shafts , and it...

GREAT DRILL BITS can be customized and supply various sizes , type downhole motor according to the drilling demand.

RC PDC bit from GREAT are manufactured from AISI 4145H heat-treated steel.