30mm Granite Drill Bit for Ceramic Tiles, Concrete, and Marble

1、Selected high‑quality diamond particles and reasonable formula can effectively improve the sharpness and wear resistance 2、Straight shank design, suitable for most hand electric drills on the market, with a wide range of applications 3、Suitable for opening holes in granite, marble, all‑ceramic tiles and vitrified tiles, etc. 4、The shank diameter is 10mm which is simple to install and the working depth is 58mm 5、Available in four specifications for choice, 22/25/28/30mm, can meet different needsItem Type: Drill Hole Saw Material: Diamond Drilling Specification: Approx. 22mm / 0.9in 25mm / 1in 28mm / 1.1in 30mm / 1.2in Shank Diameter: Approx. 10mm / 0.4in Working Depth: Approx. 58mm / 2.3in Applicable Equipment: Hand drill, bench drill 1 x Hole Saw