The leader manufacture to PDC bits, Roller Cone bits, hole openers, reamers

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 ....

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

Matrix body PDC bit is made by Tungsten carbide podwer , it is very high hardness material , mainly used for deep Oil&Gas well drilling.

GREAT DRILL customized Rock reamers size from 10'' to 72''.