Precision machining is a type of technical manufacturing that is essential in creating and designing machines, parts, tools, and other hardware that are essential in modern manufacturing to maintain process controls and tolerances that function under extremely tight specifications. It is used to make up the many large and small objects and their components that we use in everyday life. If an object is made up of many small parts, these will often need to be made with precision machining to ensure they fit together precisely and function properly. Precision Machining can be defined as utilizing the highest function of a tool, program, engineering talent or equipment thus pushing the limits of design feature creation and materials science and performing these operations under the tightest tolerances defined by any sub-set of these manufacturing parameters. Obviously, precision machining has evolved over time, and advancements in all related technologies help push the limits that define precision machining and improve performance consistently. The real art in precision machining comes with the marriage of computer controlled design and human engineered design for the creation of unique features and highly controlled output and functionality driven by advancements in fluid dynamics, chemical control, mechanical, climate extremes and durability required in modern hardware technologies. Precision machining is particularly important to create tools and parts in a way that is precise, stable, and can be repeated with consistency, accuracy, and durability.