A CNC (Computer Numerical Control) machine is an advanced manufacturing tool governed by pre-programmed computer software that dictates the movement of factory tools and machinery. By translating digital design instructions (typically CAD and CAM files) into precise, highly coordinated Cartesian movements, CNC machines automate cutting, milling, turning, and drilling operations on metals, plastics, and composites, ensuring unmatched accuracy, repeatability, and efficiency compared to manual machining.