Description Drillpro 6 16mm Vaccum Brazed Diamond Dry Drill Bits Hole Saw Cutter Round Shank for Granite Marble Ceramic Tile GlassSpecification Hole dirll size 6 8 10 12 14 16mmDiamond Length 10mmMaterial DiamondColor BlueShank Round ShankWith cooling waxDrill SizeMax Drill DepthTotal LengthShank Diameter6mm30mm65mm5 4mm8mm30mm65mm8 0mm10mm30mm65mm8 3mm12mm30mm65mm8 3mm14mm30mm65mm8 3mm16mm30mm65mm8 3mmApplication For drilling granitemarble masonry concrete tile ceramic glass hard plastic Feature Round shank design fit for most drill chuck Wax inside for cooling Dry drilling without water Very high efficiency multi purpose drilling Long life drilling Package Included 1 x Drill BitMore Details