1pcs 6-75mm Opener Diamond Coated Hole Saw Cutter Glass Marble DrillBits Cutting

Features: *100% Brand New and High Quality *This diamond coated core drill bit removes a completecircle from glass tiles marble granite ceramic or other---Materials and only needs water for lubrication *Always use lubrication (water) otherwise the diamondcore drill burn *Can be used with a standard electric drill *Start your hole diagonally make a round trace and thenhold drill Specifications: *Material: Diamond *Color: blue *Size(Approxi.): 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 25mm 28mm 30mm 32mm 35mm 38mm 40mm 42mm 45mm 50mm 55mm 60mm 65mm 70mm 75mm (optioal) Note: 6 8 10mm Round shank Above 10mm Triangular shank. Due to logistics and transportation reasons the product may have a little paint off but it will not affect the use Manual measurement please allow 3-5mm error Package Contents: 1 PCS Diamond Drill Core Bits