The Chicago Electric Chain Saw Sharpener is a powerful tool with a 4200 RPM motor, designed for efficiently sharpening chain saw blades. With the Chicago Electric brand known for quality products, this sharpener is reliable and durable for professional use in businesses or industrial settings. The included extra blade ensures that users always have a spare on hand for quick replacements, making it a convenient and essential tool for maintaining sharp chain saw blades. Hardly used. Extra blade and mounting Board included.