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Drill steel & rock bits drill steel, paired with a rock bit, is often used to drill holes larger than 1-1/2" and is available in lengths up to 120". champion chisel offers h-thread, 11 degree taper, rope & d-thread steel & bits. drill steel is produced using a hollow steel to allow either water or air to be pumped through to keep the drill hole ...

Custom drill bits. custom drilling solutions. when your specific drilling application requires a custom drill or you need added performance and efficiencies, you can rely on rmt. our experience, dedicated cutting tool engineers will design, engineer and insure manufacturing excellence, delivering outstanding drill performance and cost cutting ...

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