A fitter and turner is responsible for studying blueprints, plans, and drawings to be able to construct, assemble, manufacture, and fit parts of machines. This person is also responsible for maintaining and repairing different types of machinery.

Mechanical Fitting involves assembly, installation and maintenance of complex machinery used in industries.

The millwright possesses a combination of a fitter and an electrician skill sets, enabling them to install, dismantle, repair, reassemble and move machinery in factories, power plants and construction sites. Additionally, they can perform mechanical and electrical fault finding on machines and equipment, understand engineering standards and the methodology to repair and do preventative maintenance on plants, machines and equipment. The Millwright should also be able to know and identify bearings their applications and how to store and maintain them. Manufacturing of keys and small components are also commonly done by using measuring, marking off equipment drilling machines grinders and hand tools.

Welders are skilled in understanding the compatibility of different types of materials that needs to be welded together, to ensure a proper solid structure comes out of the welding process. These materials include ferrous and non-ferrous metals such as carbon steel and aluminium. Welders are also skilled in understanding settings on various machines and welding rods or welding wire, as well as the setting up of regulators, different types of gases being used in the welding disciplines and how to purge in order to remove oxygen to prevent conditions of porosity.