The metal tumbler for jewelry has a custom time function, fast processing speed, and simple & safe operation for polishing irregular-shaped parts, holes, tubular and other dead ends, cracks, etc. Suitable for light metals, non-ferrous metals, hard plastics, and other precision required pieces to achieve deburring, chamfering, polishing, washing, and other multiple effects. Make old corroded or worn belongings shine radiantly again with our jewelry polisher.