FeaturesPorcelain Diamond Hole SawFor Cutting 1-3/8 in. Diameter Holes In PorcelainGlass. Marble. Ceramic & GraniteIdeal For FaucetPipe & Showerhead InstallationsFits Standard 1/2 in. Or 3/8 in. Drill Chucks.Dimension - 1.6 x 4.5 x 9.5 in.Item weight - 0.44 lbs.