GREAT's High-quality Bits Series II

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.

This is a 7 blade Matrix body PDC bit , with Stinger cutters back row, used for very abrasive formation.

Overview Roller bitGREAT has customized manufacture several types of roller bit . It is including 90 ° U-shaped Roller Bit, 120 ° U-shaped Roller Bit and Starry Sky Roller Bit.The 90 ° U-shaped Rol...