grinding polisher Description: 1:the whole machine is 98kgs with extra weightiron, which can be used for crystal surface renovation and floor cleaning 2:support is designed with metal to make it strong and durable 3:perfect steel gear box, 3planetary 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:crystal surface treatment, renovation and floor cleaning Parameter NO.Model No.CommodityVoltageHorse powerRotor speedWork widthWork efficiencyBNT-122PX-170Heavy duty polisher220v/50hz2.0HP175rpm17''650-840sq.m/h