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An investigation into the percussive drill bit penetration of rock / [mikrofilem]
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An investigation into the percussive drill bit penetration of rock /
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Specification for rotary drill rods and tungsten carbide tipped rotary drill bits
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Effects of machining parameters and bismuth addition on Al-20%Mg2Si machinability during dry turning /
Published 2014Subjects: “…Bits (Drilling and boring)…”
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Effects of machining parameters and bismuth addition on Al-20%Mg2Si machinability during dry turning [electronic resource] /
Published 2014Subjects: “…Bits (Drilling and boring)…”
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Seismic while drilling : fundamentals of drill-bit seismic for exploration /
Published 2004Subjects: -
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