Heat Treating Equipment Setters, Operators, and Tenders, Metal and Plastic
Set up, operate, or tend heating equipment, such as heat-treating furnaces, flame-hardening machines, induction machines, soaking pits, or vacuum equipment to temper, harden, anneal, or heat treat metal or plastic objects.
Definition from U.S. Department of Labor, Employment and Training Administration (USDOL/ETA) (O*NET 31.0 (August 2026)).