Consider the parts of a toaster, such as the metal or plastic housing or the lever that lowers the toast. These parts, and many other metal and plastic products, are produced by machines that are controlled by machine setters, operators, and tenders—metal and plastic. In fact, machine operators in the metalworking and plastics industries play a major role in producing most of the consumer products on which we rely daily.
High School Diploma or equivalent, is required for most jobs. A course in auto mechanics will be of use. Private vocational training would help landing a job much easier.