Description of Atoplee Diamond Coated Marble Granite
【Good Quality Material】The main material is metal, and the grinding head part is coated with emery, which is hard and wear-resistant. 【Cutting Hole Diameter 】 5 mm / 3/16". 【Size 】49mm shank and 53mm total length. 【Usage】 Suitable for use in drill hole on glass, marble, tile or granite.Please add water for coolant and drill slowly. 【Package Content 】10 x Glass Hole Saws.