GREAT's High-quality Bits Series I

This type of Bi-center bit mainly used for medium to medium hard compressive and 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 ....

PDC Reamer is the perfect tool for large diameter HDD bores. The size of the reamer is ranging from 12" to 50".

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