Glass Tile Hole Saw Bits Set, Diamond Hole Saw Drill Bits Extractor Remover Tools Hole Saws for Glass, Porcelain, Ceramic, Granite Light Stone Hollow Core Drill Bits Pack of 18,Sizes 4-50mm

Glass Tile Hole Saw Bits Set, Diamond Hole Saw Drill Bits Extractor Remover Tools Hole Saws for Glass, Porcelain, Ceramic, Granite Light Stone Hollow Core Drill Bits Pack of 18,Sizes 4-50mm

• 18 sizes tile glass drill bit hole saw -4/ 6/ 8/ 10/ 12/ 14/ 16/ 18/ 20/ 22/ 25/ 26/ 28/ 30/32/ 40/ 45/50 mm
• Wide application: Drilling 18 sizes diameter holes for glass, tile bottles, fiber glass porcelain tile ceramic, granite Light Stone, blocks jars,,slate mable etc
• Material: high quality steel, diamond dust coating to ensure superior performance and cutting strength.
• Operation skills:Make a mark on the hole before cutting and keep wet surface with water for lubrication when drilling; hold drill 45 degress to strat hole and keeping drill at a low speed;then hold drill vertical once the hole has started;when exit hole or drill from the other side pls reduce slowest drill speeds and minimum pressure to prevent breakthrough.
• Amazon satisfied customer service & fast ship