10 PCS Diamond Glass Drill Bits,Diamond Hole Saw Remover Tools for Glass, Porcelain, Ceramic, Granite Stone Drill Bits 6-50mm

Features:This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication.Always use lubrication (water), otherwise the diamond core drill will burn.Can be used with a standard electric drill.Start your hole diagonally, make a round trace and then hold drill straight.Applicable : coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication.Material: Diamond alloySize include:6mm,8mm,10mm,14mm,16mm,18mm,22mm,35mm,40mm,50mm.NOTE:After opening installation, commissioning idling should observe whether the beating, then normal operation, the best resultsInto the hole to have a smooth time, please do not exert pressure on the side and curves spudHave enough openings for cooling and lubrication to reduce wear and coating products offNon-occurrence of high-temperature drilling dry rub, causing severe wear affect the resultsThe operator must wear safety protective equipment to ensure safe operationPackage Include: 10 pcs Diamond Glass Drill Bits(Size include:6mm,8mm,10mm,14mm,16mm,18mm,22mm,35mm,40mm,50mm)