Production Rate: 22" Working width will grind approximately 400-500 sq ft. per hour at 1/32" with EDCO Dyma-serts. INCLUDES: 2-multi-accesory Disc, 2" Vacuum Port & Water Port - 115v/230 V voltage selector switch. REQUIRES: 6-Grinding Insert Accessories per loading. IDEAL for: - Smoothing concrete in large and small areas.- Light grinding or cleaning of concrete surfaces. - Removing Mastics, Thin-sets, Sealers, Epoxies and Urethanes