Dry Diamond Drill Bit Set,BGTEC 2pcs 1/4" 6mm Hole Saw for Granite,Marble,Masonry, Concrete, Tile/Ceramic, Glass, Hard plastic,Vacuum Brazed Diamond Core Drill Bit Kit

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Dry Diamond Drill Bit Set,BGTEC 2pcs 1/4" 6mm Hole Features

• diameter 6mm 1/4 Inch,diamond length 8mm,Round shank

• Multi-purpose drilling for granite & marble, masonry, concrete, tile/ceramic, glass, hard plastic,All-Purpose Drilling

• Wax inside for cooling,our Diamond Tipped Drill Bits have wax cores built-in for Cooling and Lubrication.Special Designed with Hole and Groove in the Side of Drill Bit for Removing Stone Chips

• Dry drilling without water,Use water for longer time

• Vacuum Brazed diamond technology provide very high efficiency,cuts faster,durable and sturdy

About Dry Diamond Drill Bit Set,BGTEC 2pcs 1/4" 6mm Hole