Dry Diamond Drill Bit - BGTEC 2pcs 28mm Hole Saw for Granite,Marble,Masonry, Concrete, Tile/Ceramic, Glass, Hard plastic,Vacuum Brazed Diamond Core Drill Bit Kit

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Product description

  • Size 2 pieces dry diamond drill bits (28mm).Total Length 65mm,Diamond height 10mm,Max working depth 30mm,Diameter 28mm,Round shank,Grit #40 45
  • Note Used for hand drill and bench drill,Hand drill at 2000-5000RPM, the slower the shorter the life.
  • Vacuum Brazed technology Higher efficiency, faster working speed, longer service life.

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