T38 4 Inch / 5 Inch Tungsten Carbide Hard Rock Mining Threaded Button Drill Bit Description The thread button drill bits are made by high quality alloy steel bar and tungsten carbides. Through heat treatment, ... Διαβάστε περισσότερα
R32 Threaded Tungsten Carbide Button Drill Bit Description Threaded drill bits include general,retrac and reaming three series,with stronger button-fixing ability,longer service life,better wear-resistance and ... Διαβάστε περισσότερα
Dome Reaming Drill Bit , T38 / T45 Tungsten Carbide Drill Bits Reaming bits is used for making large cut holes in drifting and tunneling. A smaller hole is first drilled and then reamed to the final size in ... Διαβάστε περισσότερα
Reaming Button Bit + Pilot Adapter R25 R28 R32 Hard Rock Tungsten Carbide Description: These bits are designed for layer drilling, to enlarge pilot holes for long hole blasting of drop raises in underground ... Διαβάστε περισσότερα
R32 T38 Reaming Drill Button Bit Rock Drilling Tools Blast Hole Drilling Our Service: Compared with the oversea brands, our advantages are bellowing: 1. Our products can match over 95% against the original ... Διαβάστε περισσότερα
Reamer Button Bit 152MM T51 For Mining And Tunnel Hard Rock Drill Bits Detailed Product DescriptionThis type of bit is used for making large cut holes in drifting and tunneling. A smaller hole is first drilled ... Διαβάστε περισσότερα
6 Inch T51 Spherical Mining Industrial Drill Bits Reaming Button Bit Description Reaming drilling tools are used when a large diameter is needed to be reamed out after a pilot holes is drilled to a depth. We ... Διαβάστε περισσότερα
R32 38-76mm Drilling Accesories Integral Reaming Drill Bit For Tunneling Entire CNC processing procedure ensure the quality consistency Military grade requirements of heat-treatment guarantee durability Fast ... Διαβάστε περισσότερα