NEW - BLUEROCK Tools Sanding Polishing Machine Model 120D- NEW Specifications: Disc Diameter: 4.75" (120mm). Disc Width: 4". Rated Voltage: 110V. Rated Frequency: 50-60Hz. Rated Input Power: 900W. Variable Speed: 900-2800 rpm. Weight: 9 pounds Structure and Features: Comes with 1 pc 80 grit sanding wheel. This unit is designed to be an easy portable hand held sanding/polishing hold down switch for comfort. This is a brand NEW grinding/polishing machine used for burnishing, treating, sanding and polishing assortment of surfaces from stainless to wood. It's a high quality unit with variable speed function. If you'd like additional wheels, contact us post sale or in the future. Let us know if you have any questions before or after purchase. Thanks for shopping!