CNC (Computer Numerical Control) machining is a transformative manufacturing technology that automates the control of machine tools through computer programming. This process begins with a CAD (Computer-Aided Design) model, which is converted into a machine-readable format using CAM (Computer-Aided Manufacturing) software. Once programmed, the CNC machine executes precise movements of tools like lathes, mills, or grinders to shape materials such as metals, plastics, and composites into complex components. The process involves multiple stages, including design, programming, setup, and actual machining, ensuring high precision and repeatability. CNC machining offers several advantages, including reduced human error, faster production, cost efficiency, and the ability to create intricate designs with multi-axis capabilities. Applications span diverse industries like aerospace, automotive, electronics, and medical, where precision and quality are critical. As technology advances, CNC machines are becoming smarter with AI integration, IoT connectivity, and automation, paving the way for enhanced productivity and predictive maintenance. The future of CNC machining lies in its ability to adapt to advanced materials, support mass customization, and operate within smart factories driven by Industry 4.0. This continuous evolution ensures CNC machining remains a cornerstone of modern manufacturing, driving innovation and efficiency on a global scale.