Get a professional edge on your chain saw with the Sportsman Earth Series Mountable Bench Top Electric Chain Saw Sharpener. Don't run to the hardware store every time you need the chain sharpened. A dull chainsaw wastes time and effort; not to mention the safety hazard a dull saw creates. The Sportsman Chain Saw Grinder comes with two 5.5-inch dia. grinding wheels, 1/8 and 3/16 inch, which spin at 3,000 RPMs. Made to work with most chain saw brands, the heavy-duty Electric Chain Saw Sharpener adjust to fit 4 common size chains, 1/4, .325, 3/8, and .404 inch. A built-in work light let you see what you are doing. Keep your chain in top condition and save money by sharpening your own saw Fits most brands and 4 common size chains 1/4, .325, 3/8, and .404 inch 2 grinding wheels included, 1/8 inch and 3/16 inch, 5.5 inch dia, Mounts to bench or worktop for safety and stability Built-in light illuminates work surface 3,000 RPM, 110 volts, 50 Hz, 230 watts, less than 85 decibels Plugs into a standard 120 volt wall outlet