roof bolt drill bits

roof bolt drill bits

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  • 27,28,29,30,32mm For Sandstone Pdc Roof Bolt Drill Bits

    1. The introduction of PDC anchor shank drill bit/PCD diamond drill bit . PDC anchor shank drill bits are mainly used for the coal seam, dam and roadway construction of bolt-mesh support. Their life are 10-30 times of tungsten carbide bits.

  • 28mm Borehole Sandstone Pcd Anchor Roof Bolting Drill Bit

    2. Roof bolt drill bit is a kind of drilling tool for fixing anchor bolt of coal mine. The two wings of our PDC roof bolt drill bit adopt high performance PDC (Polycrystalline Diamond Compact) as the cutting tooth.

  • 28mm Pcd Anchor Roof Bolting Drill Bit For Coal Mine - Buy

    28mm PCD anchor roof bolting drill bit for coal mine . 1, PCD cutters as the cutting teeth, wear-resistant and high impact toughness. 2, Long service life in the testing, 10 times than carbide anchor bits;

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  • Bolt-Mesh Supporting 27mm Coal Mining Bits/Anchor

    Pcd Bit / Pcd Coal Mining Drill Bit / Pcd Anchor Shank Drill Bit - Alibaba The introduction of PDC(Polycrystalline Diamond) anchor shank drill bits /PCD roof bolt drill bits. PDC(Polycrystalline Diamond) anchor shank drill bits /PCD ...

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About KAMY

KAMY series of Roadheaders offers the best cutting performance in a wide range of rock formations. Equipped with geometrically optimized transverse or longitudinal cutter heads, these flexible machines can be used to excavate subway tunnels, road tunnels, railway tunnels and water tunnels without using explosives.