Welcome: Henan Starockdrill Equipment Co., Ltd
  • DTH OPENER BITS

DTH OPENER BITS

  • 1.USED TO INCREASE THE SIZE OF A PRE-DRILLED HOLE AGAINST HAMMER
  • 2. DRILLING A LARGE HOLE WITH SMALL HAMMER
  • EMAIL US   INQUIRY

DTH HOLE OPENER BITS

SOLVE PROBLEMS WITH SMALL HOLE TO LARGE HOLE.

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