... : 15hp, speed 300-2000rpm; Disc Diameter: 250mm*3 Vacuum port terrazzo floor grinderPerformance1, Aluminum alloy gearbox guarantee quality;2, Big motor ... , Smoothing rough surfaces or trowel marks;2, Grinding concrete or terrazzo;3, Repairing damaged concrete slabs;4, Removing epoxy thin-coats ... the diamond tools; Button of start, stop, adjust the inverter; .... terrazzo floor grinder