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Diamond drill

A type of rotary drill that performs cutting by abrasion rather than percussion. The cutting bit is set with diamonds and is attached to the end of long hollow rods through which water is pumped to the cutting face. The drill cuts a core of rock which is recovered in long cylindrical sections, an inch or more in diameter.

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  • Part of Speech: noun
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  • Industry/Domain: Mining
  • Category: General mining
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