Threaded drill bits are also known as button bits which connect with threaded drill rods by threads to transfer impact power and rotation torque for breaking rocks. The threaded drill bits, working with hydraulic drill rigs and hydraulic jumbos.have main threads of R22, R25,R28, R32, TR35, T38, T45, T51, ST58, ST68, EL60, EL68 and T60, which are widely used in open bit mining, underground mining, tunneling, anchoring, furnace tapping, tunnel construction, hydropower engineering, quarrying and construction.
