Production machining is the precision process of creating metal or plastic parts in large quantities using automated machines like CNC lathes, milling machines, and drill presses. Crucial materials include aluminum, steel, brass, and plastic, each selected for strength, durability, or flexibility depending on use. Common parts include gears, shafts, and fittings, manufactured for industries like automotive, aerospace, medical, and electronics. Techniques involve CNC machining, turning, milling, and drilling. Production machining provides accurate, high-strength components with tight tolerances and customizable dimensions for efficient, scalable manufacturing.