According to different drilling application, we have different design to meet customers with good quality and good price .
No matter what kinds of rock—Soft rock, loose-mediumrock, hard rock and any other special formations, just tell us what you need and leave others at our disposal, we will handle the following, our special Tailored service is waiting for you upon your demand.
(1)Thread: R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, T60
(2)Diameter: 38-127mm.
(3)Package: in wooden case or in carton.
