The Triple Diamond Electric Knife Sharpener has three different grits to assure the sharpest blades possible. The grits start out as very coarse to create a new edge, medium grit to refine the edge and very fine grit to polish the edge. The Sharpener has pre-set angles which helps in a busy kitchen so there is no worry about setting bevels or maintaining angles. The sharpening abrasives are completely diamond which guarantees the sharpest blade every time. The Sharpener works with all types of knives straight edge, serrated and even pocket knives and sporting knives. The Sharpener is easy to use and great for restaurants, cafes and catered events. - NSF and ETL listed - Volts 120 - Watts 125 - Amps 1.04 - Hz 50/60 - Cord length 5 ft - Sold per each