BGTEC Dry Diamond Drill Bits Set - 5pcs 6mm Tile Drill Bits and 5pcs 6mm Carbide Drill for Granite Marble Porcelain Ceramic

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Product description

  • Size Total 10 pieces, 5 pcs dry diamond drill bits (1 4" 6mm), round shank and 5pcs Carbide Drill bit (1 4" 6mm).
  • Note Used for hand drill and bench drill,Hand drill at 2000-5000RPM, the slower the shorter the life.
  • Wax inside For cooling,our Diamond Tipped Drill Bits have wax cores built-in which automatically absorb and dissipate heat as you go.
  • Vacuum Brazed technology Higher efficiency, faster working speed, longer service life.

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