drilling bit

Definitions of drilling bit
  1. noun
    a bit used in drilling for oil
    synonyms: drill bit
    see moresee less
    types:
    core bit
    a hollow drilling bit that is the cutting part of a core drill; allows core samples to be taken
    blade bit, fishtail bit
    a drilling bit with cutting edges usually hardened against wear
    rock bit, roller bit
    a drill bit that has hardened rotating rollers
    type of:
    bit
    the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press
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