heavy duty polisher Description: 1:support is designed with metal to make it strong and durable 2:interlock protection switch is used to prevent it from opening unconsciously 3:50feet yellow cord can make you easily move in all directions 4:comfortable and simple operation, easy moving 5:used for factories, hotels, schools, stations, supermarkets and so on Parameter: No.Model No.CommodityVoltageHorse powerRotor speedWork widthWork efficiencyBNT-222SPX-170Heavy duty polisher220v/50hz2.0 hp175rpm17"700-900sq.m/h