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Carbide-tipped Bits

  • Description
Product Detail

    Suitable for special drilling operation in soft to medium soft formations (f =1~5).

    ? Features

    Carbide bits have a simple structure with low operation cost and high drilling efficiency.

    ? Sizes

    Ordinary steel bits: F75, F94, F113, F133, F153

    Plug-in type of casted steel spiral bits:F75~F150 (For special drilling operation of gas drainage boreholes in the coal seam) Large diameter bits for rescue: F300, F450, F600 ( Specially for across roadway and rescue borehole drilling operations).

     


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Xian Research Institute Of China Coal Research Institute

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