Whether it’s for goods, components, procedures, equipment, or machines, quality management is critical in every industry. Manufacturers are increasingly choosing CNC machining over conventional machining for a variety of reasons. Despite the fact that CNC machining ensures higher efficiency and fewer errors than conventional machining, quality inspections remain an important part of the manufacturing process. At different stages of the machining process, quality control and inspections are performed. In addition, quality assurance, which is distinct from quality management, is a critical consideration. The processes established by the company and an appointed body to conduct quality inspections are referred to as quality assurance. This also requires any accompanying documents. So, quality assurance is the setup of processes and documentation, while quality control is the execution of those processes and documentation on a regular basis or as required. This article addresses the significance of quality inspections and CNC machining methods.