R28 Thread Button Bit

  • R28 Drill Bit for Drifting

    R28 Drill Bits are made by high quality alloy steel bar and tungsten carbides.It is widely used in Drifting and Tunneling. GMD could design customized thread button drill bits according to different drilling application.
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  • R28 Tungsten Carbide Thread Button Bit

    R28 Tungsten Carbide Thread Button Bits are widely used in Drifting and Tunneling. GMD could design customized thread button drill bits according to different drilling application.
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As one of the leading R28 thread button bit manufacturers and suppliers in China, we warmly welcome you to wholesale quality R28 thread button bit at competitive price from our factory.