The CKG Model is a sharpener developed by Urschel Laboratories. It is mainly used to place the best possible cutting edge on circular knives. The standard machine can also sharpen both standard and heavy duty types of 3, 3.5, 4, and 5 inch circular knives used on Urschel machines. In addition, the framework is equipped with 394 mm length, 330 mm width, 254 mm height, 25 kg net weight, and .13 kW motor.