10PCs Diamond Hole Saw Bit Set Washable Hand Tools Durable Industrial Parts 8 50MM

Feature: 1. Supports diamond coating and washable nickel surface, such drill bit can be easy to use in the practical life. 2. On the one hand, diamond coating increases the drilling speed, making it the sharpest drill bit. On the other hand, nickel plated surface can extend the life of the drill bit and improve its corrosion resistance. 3. To drill glass, cookie jars, bottles, tiles, fiberglass, ceramics, marble, slate, and granite, this drill bit is suitable for forming clean and accurate holes in glass and tiles Use under.Do not use on concrete or in depths longer than 1 2 inch. 4. All drill bits are coated with a smooth and accurate coating. Reducedrilling speed, lower drilling pressure and increased use of water lubrication will greatly extend the life of the drill bit. 5. Keeps long service life, hole saw bit with high quality and high performance is very fit for making clean and precise holes. Specification: Item Type: Drill bit Color: Silver Material: High speed steel Height: Approx. 50mm 2in Diameter: Approx. 8mm 0.31in, Approx. 10mm 0.39in, Approx. 14mm 0.55in, Approx.16mm 0.63in, Approx.18mm 0.71in, Approx. 22mm 0.87in, Approx. 26mm 1.02in, Approx. 38mm 1.5in, Approx. 45mm 1.77in, Approx. 50mm 1.97in . Package List: 10 x Drill Bit