Angle Grinder Hole Saw Core Drill Bits M14 Brazed Hole Saw Opener Drill Bit Core Cutter 20mm 22mm 24mm for Marble Tile Ceramic Tile(20mm) Different Sizes - We provides 3 kinds of hole saw of different sizes Material - Made of , and has good cutting performance. Fast Speed - The cutter head is sharpened, the drilling speed is fast, and the opening is round and there is no notch. Specification: Item Type: Hole Saw Size:20mm/22mm/25mm(Optional) Inner Thread:M14 Material: Application:Angle Grinder Package List: 1 x Angle Grinder Hole Saw