Chef's Choice® Electric Three Stage Sharpener can be used on all types of knives including Asian and serrated. Two diamond abrasive disks and one stropping disk provide a triple bevel edge to help keep knives stay sharper longer. Rugged metal casing designed for heavy commercial use. Stainless steel construction. Removable module is dishwasher safe. Built in angle guides for easy operation. NSF listed. 120V. 12"Wx43/4"Dx5"H. 9 lbs.