terrazzo floor grinder Motor: 10hp, 360-400V, 3P; Inverter: 15hp, speed 300-2000rpm; ... entering the machine.Ideal for1, Smoothing rough surfaces or trowel marks;2, Grinding concrete or terrazzo;3, Repairing damaged concrete slabs;4 ... tools; Button of start, stop, adjust the inverter; .... terrazzo floor grinder