A professional who tends one or more tumbling machines containing steel shot, soap, and water, that clean and polish jewelry articles preparatory to further processing. Respnsibilities include:

• Loads machine with jewelry articles.
• Bolts lid on machine and starts machine that tumbles and rotates articles in cleaning solution for specified length of time.
• Places articles in sawdust box for drying.
• Cleans sawdust from articles, using airhose.