We, Cangzhou Great Drill Bits Co. Ltd., specialized in R&D, design, production, and sales various drill bits. The drill bits size from 3" to 26" , HDD ... Explore More
Single Cone Rock Roller Drill Bit for core barrel pilot bit
Overview of Roller Bit
GREAT Drill Bits have customized manufacture several types of ro ... Explore More
Bi-center bit for Mining Machinery and abrasive formation
Overview of Bi-center Bit
This type of Bi-center bit mainly used for medium to medium-har ... Explore More
Well Drilling Equipment Crocodile PDC Reamer for Horizontal Drilling
Overview PDC Reamer
The PDC Reamer manufactured by GREAT China drill bit will b ... Explore More
Three Blade Wings Drag Rock Drill Bit For soft formations
Overview of Drag Bit
Drag bit drilling is manufactured from forged high-quality alloy ste ... Explore More
