Metal working machine operatives operate machines to cut, shape, abrade and otherwise machine metal, use hand and power tools to remove surplus metal and rough surfaces from castings, forgings or other metal parts, and clean, smooth and polish metal workpieces.

Metal working production and maintenance fitters erect, install and repair electrical and mechanical plant and industrial machinery, fit and assemble parts and sub-assemblies in the manufacture of metal products and test and adjust new motor vehicles and engines.

Precision instrument makers and repairers make, calibrate, test and repair precision and optical instruments such as barometers, compasses, cameras, calibrators, watches, clocks and chronometers.

Production and process engineers advise on and direct technical aspects of production programmes to ensure cost-effectiveness and efficiency. This group includes planning and quality control engineers who plan production schedules work sequences, and manufacturing and processing procedures to ensure accuracy, quality and reliability; and chemical engineers who undertake research on commercial scale chemical processes and processed products, design and provide specifications and direct the construction, operation, maintenance and repair of chemical plants and control systems.

Quality control and planning engineers plan production schedules, work sequences, and manufacturing and processing procedures to ensure accuracy, quality and reliability.

Workers in this group perform a variety of technical support functions.