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Product Details
✓Size: Totally 10 pcs/set: Diameter 5 pcs 1/4 inch(6 mm),Total length 65 mm; Diamond height 8 mm; Diamond Grit #50/60; Hex shank 6.35 mm; with 5 pcs 1/4 inch(6 mm) Carbide Tip Drill Bits
✓Application: Dry or Wet drilling Ceramic Porcelain Tile Marble Granite Mirror Plant Pots Wood, etc, use water for longer life
✓Cooling Wax: The inside of drill bits are filled with cooling wax, help heat dissipation and chip evacuation. Dry drilling without water, very convenient
✓Vacuum Brazed Technology: Vacuum Brazed Technology and high quality diamond grains provides fast and smooth drilling, longer working life. Diamond material upgraded, can drill 10-15 more holes than ordinary drill bits
✓Recommended Machine: Diamond dry drill bits suitables for Corded Drill, Cordless Drill, Benchtop Drill. Recommended speed: 2000-5000 RPM; Faster the RPM, Longer the drill bit's Working Life. When use Angle Grinder, please install angle grinder drill chuck