Precision CNC machining is a highly advanced subtractive manufacturing process that utilizes computer numerical control (CNC) systems to produce components with exceptionally tight tolerances, complex geometries, and superior surface finishes. By combining state-of-the-art multi-axis CNC machines (e.g., 5-axis or 7-axis systems) with high-performance cutting tools and optimized CAD/CAM programming, this method achieves micron-level accuracy (±0.001–0.005 mm or better) for critical applications across industries such as aerospace, medical devices, automotive, and robotics.