Abstract: A wheel finishing apparatus includes an upwardly opening tank which stores therein a water and media mixture. An elongated spindle is mounted on a frame and is displaced directly above the tank. The spindle includes on its lower end a hydraulically expandable bulb which acts as a wheel clamp to releasably mount a wheel to be finished onto the spindle. A circular plate is mounted on the spindle a predetermined distance from the lower end of the spindle and cooperates with a mounted wheel to define a cylindrical flow channel therebetween. A motor connects to the spindle and operates to rotate the spindle and thus the wheel in the media at high speeds.