Precise Design Talc Taper Button Bit , Forging Tungsten Carbide Drill Bits

Talc Tapered Drill Bits Carbide Button Drill Bits Quarry Tapered Button Description: Button:tungsten carbide button is the key of the tapered drill bits .our tungsten carbide button is manufacture by ourselves . tungsten carbide grad JZ05 JZ15X JZ8 JZ8X for you different rock condition . Steel :42CrMo alloy steel which with Vacuum heat treatment to improve the hardness of the steell body . we also can customization for different alloy steel according your application