BGTEC Diamond Core Drill Bits, 11pcs 6/8/10/20/25/28/32/35/45/50/65mm Triangle Shank Hole Saw Drill Bits for Ceramic Porcelain Tile Marble Granite Stoneware Quartz

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Product description

  • Size 11pcs diamond core drill bits, diameter 6 8 10 20 25 28 32 35 45 50 65mm; total length 65mm; diamond height 10mm; diamond grit #40 45; triangular shank diameter 10mm;
  • Cooling and Heat Dissipation 6-10MM internal wax cooling wax, when drilling, the cooling wax melts to lubricate and cool the drilling surface; 20MM and above, the top of the drill bit has 4 U grooves, which is conducive to heat dissipation and discharge of debris.
  • Not Easy to Chip Precision diamond particles and vacuum brazing technology ensure that the drill bit is not easy to chip or damage during the drilling process, guaranteeing work safety and efficiency.
  • Applicable machines Hand drill, bench drill. Recommended speed 2000 to 5000 rpm; the higher the speed, the longer the life of the drill bit. If you are using an angle grinder, please install a drill adapter.

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