Great Rock Reamer Hole Opener Quality Control

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

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

Normally drag bits are 3 wings, but we can make 4 or 5 wings following your drawings or samples.

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 ....