Operate or watch over furnaces, such as gas, oil, coal, electric arc or electric induction, open hearth, or oxygen furnaces, to melt and refine metal before casting or to produce specified types of steel.

Set up and operate a variety of machine tools to produce precision parts and instruments. They fabricate, modify, or repair mechanical instruments. They also fabricate and modify parts to make or repair machine tools or maintain industrial machines, applying knowledge of mechanics, mathematics, metal properties, layout, and machining procedures.

Set up, operate, or watch over milling or planing machines to mill, plane, shape, groove, or profile metal or plastic work pieces.

Set up, operate, or watch over lathe and turning machines to turn, bore, thread, form, or face metal or plastic materials, such as wire, rod, or bar stock.

Set up, operate, or watch over drilling machines to drill, bore, ream, mill, or countersink metal or plastic work pieces.

Set up, operate, or watch over grinding and related tools that remove excess material or burrs from surfaces, sharpen edges or corners, or buff, hone, or polish metal or plastic work pieces.

Set up, operate, or watch over machines to saw, cut, shear, slit, punch, crimp, notch, bend, or straighten metal or plastic material.

Set up, operate, or watch over machines to roll steel or plastic forming bends, beads, knurls, rolls, or plate or to flatten, temper, or reduce gauge of material.

Set up, operate, or watch over machines to extrude or draw thermoplastic or metal materials into tubes, rods, hoses, wire, bars, or structural shapes.

Operate or watch over cooking equipment, such as steam cooking vats, deep fry cookers, pressure cookers, kettles, and boilers, to prepare food products.