Irwin TDT105 Diamond Disc 4" Turbo -For Wet and Dry Application -Same finish and stability of a continuous -Suitable for Cement Sheeting, Concrete, Clay Brick & Pavers, Concrete Pavers & Pipe, and Granite/Engineered Stone •Diameter: 105mm •Arbor: 20mm •Maximum RPM: 15000 •Reduced Bushings: 16mm •Cut: Wet/Dry