TREA

Drill bits with leading portion, i.e. drill bits with a pilot cutter Drill bits for enlarging the borehole

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Industry

  • CPC
  • E21B10/26
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING E21B10/00Drill bits

Current Industry

E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter Drill bits for enlarging the borehole
Industries