Diamond Concrete Drilling Extractor Porcelain Review

High Quality- These diamond drill bits made of high-speed steel that is durable and have a long sevice life, red paints on the body of this bit to avoid getting rusty. Total 14 different sizes, meet your various of needs- 6mm/ 8mm / 10mm / 12mm / 14mm / 16mm / 18mm / 20mm / 22mm / 25mm / 28mm / 30mm / 32mm / 35mm, Can be used with a standard electric drill. Good Performance- Diamond dust coating offers superior performance and cutting strength, opening neat and smooth, no broken edges, no shaking and chip easily, small incision resistance, drilling stably and will not break the border. Wide Application: These Diamond drill bits tools can cut perfect circles, suitable for Drilling Glass,Tile Bottles, Blocks Jars, Fiberglass Porcelain Tile Ceramic, Slate Mable, Granite Light Stone, etc. Only needs water for lubrication.Can be used with a standard electric drill. Good choice - This diamond drill bits set is a great gift for any DIY lover.