GREAT's High-quality Bits Series II

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 ....

GREAT DRILL BITS can be customized and supply various sizes , type downhole motor according to the drilling demand.

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

PDC Hole Openers, are used to enlarge the pilot hole in Horizontal Directional Drilling(HDD).Widely used in construction, bridge, highway and railway construction.