28PCS Electroplated Glass Drill Bit Diamond Glass Hole Opener Set

Features Good performance and long life Can be used with a standard electric drill Works better with a electric drill Not Included in the item Always use lubrication water otherwise the diamond core drill will burn Excellent for making clean and accurate hole on glass marble tile or granite When cutting hard materials it is important to ensure the cutter is kept cool to avoid damage to the material being drilled and premature wear of the cutter Specification Material Electroplated diamondProduction Process ElectroplatingColor SiliverHole Diameter 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 25mm 28mm 30mm 35mm 40mm 45mm 50mmPackage Included 28 x Diamond Coated Drill Glass Ceramic Hole SawNotes 1 Manual measuring please allow 1 3 mm error thank you 2 Please add cooling water in order to prolong the life of hole saw drill Detail Pictures