Timber Tuff CS-BWM Benchtop / Wall Mount Electric Chain Saw Chain Sharpener Supply voltage: 110v/60Hz Motor input power: 230 watt Maximum speed: 3600 rpm/110v Noise level: ,70 db (A) with light 15w Includes 3/16-Inch, 1/8-Inch, and 1/4-Inch grinding blades