As of 2021 there were 67,750 people employed as Grinding, Lapping, Polishing, and Buffing Machine Tool Setters, Operators, and Tenders, Metal and Plastic within the United States.
This represents around 0.05% of the employed workforce across the country.
Put another way, around 1 in 2 thousand people are employed as Grinding, Lapping, Polishing, and Buffing Machine Tool Setters, Operators, and Tenders, Metal and Plastic.