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Definitions of the drill
Definition that contains the drill
  • shank cylinder forming the part of a bit by which it is held in the drill
  • breast drill a portable drill with a plate that is pressed against the chest to force the drill point into the work
  • drilling pipe a series of tubes (joined by screwed collars) that connect a drilling platform to the drilling bit; rotates the bit and supplies drilling mud
  • core drill a drill that removes a cylindrical core from the drill hole
  • drilling fluid a mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole
  • drilling mud a mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole
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