GREAT's High-quality Bits Series I

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

Overview Starry Sky Roller BitGREAT has customized manufacture 90 ° U-shaped Roller Bit, 120 ° U-shaped Roller Bit and Starry Sky Roller Bit.The Roller bit mainly used for Rock reamer (Hole opener) ...

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...

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