PDC bits, Roller Cone bits, PDC reamers, Hole openers.

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

GREAT customized made Diamond core bits ,which including Matrix body and Steel body.

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...