TThe 4146 Chopper is equipped with a 5 HP motor that rotates the worm at 215 RPM. The 4146 is designed to use a #32 size knife and plate. Knives and plates are included with the chopper. The stainless steel or hot dipped tin feed pan on the 4146 is removable or can be tilted, so it can be easily washed at the sink or in place.