SPX-170DS double speed polisher Description: 1:you can adjust the high and low speed motor according to individual needs 2:support is designed with metal to make it strong and durable 3:perfect steel gear box, 3 planetary structure 4:interlock protection switch is used to prevent it from opening unconsciously 5:50feet yellow cord can make you easily move in all directions 6:comfortable and simple operation 7:used for factories, hotels, hospitals, schools, supermarkets, stations, halls and so on Parameter: Model NO.CommodityVoltageHorse powerRotor speedWork widthWork efficiencySPX-170DSDouble speed polisher220V 50Hz/110V 60Hz1.5HP180-320RPM17''750-960sq.m/h