GREAT's High-quality Bits Series II

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

Steel body PDC bit is made by AISI 4145H heat treatment steel manufacture, it has lower cost compare with Matrix body PDC bit.

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

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 ....