416F stainless steel is a free-cutting stainless steel, also known as steel for automatic machine tools or simply automatic steel. It is primarily used in the production of solenoid valves, micromotors, and electrical components. It was developed to adapt to automated machining and assembly line production. This type of steel can be cut at higher cutting speeds and deeper cuts. Furthermore, the addition of free-cutting elements to the steel reduces cutting resistance, and the inherent properties of the added elements and the compounds they form lubricate the tool edge, making chips easier to break and reducing wear. This improves the finish and precision of machined parts, extending tool life and production efficiency. 416F products are widely used in industries such as instrumentation, clocks, electronic medical equipment, mechanical hardware, automobiles, motorcycles, and eyewear.