Advanced type of taper drill bits when compared with taper chisel bits and taper cross bits. With carbide buttons hot pressed on bits bodies, it has good drilling performance and life time. Usually used for hard or very hard rock formation.

(1) Thread: R22, R25, R28, R32, R38, T38, T45 ,T51,ST58, GT60
(2) Type : button bit, retrac bit, drop center, reamer bit ,guide bit
(3) Diameter: 38-127mm.
(4) Package: in carton.
(5) Productivity: 30000pcs/ month