Face milling can be done in both manual machining and CNC machining. Automation is used in different processes of manufacturing such as machining and welding. Pocket milling has been regarded as one of the most widely used operations in machining. It has excellent metalworking, forming and machining properties. They can be fabricated readily by hot- and cold-working, machining, and welding. External scrap is material from other forming processes such as punching, forging, or machining. Broaching was originally developed for machining internal keyways. Along with the processing industries, bulk commodity storage and machining and manufacturing entered the scene. This has displaced grinding in many applications where "through machining" is possible. Lard is also useful as a cutting fluid in machining. It calls for no machining, or polishing or any other post-nitriding operations. Internal threads can also be formed using a sinker electrical discharge machining (EDM). Moulds are built through two main methods&colon; standard machining and EDM. The integration of elements has relied on the development of foundry and machining techniques. Motion control applications include passenger elevators and machining tools.