PDC bits, Roller Cone bits, PDC reamers, Hole openers. Drill bit supplier from China

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.

Steel tooth drills are suitable for extremely soft formations with low compressive strength and high drillability such as clay, mudstone, chalk, etc..

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) ...