The Waring/Qualheim 032720 Speed Control provides convenient adjustment of operating speed for compatible commercial foodservice equipment. This control is designed with a 1" x 0.187" shaft and connects to the equipment’s speed-control mechanism, allowing the operator to adjust motor speed according to the application. It works by regulating the electrical power supplied to the motor,... https://partsfe.ca/controlspeed-for-waring-part-032720