The customer approached us with a request for the series production of precision engineering components based on provided drawing documentation and a 3D model. Given that this involved the repetitive production of a large volume of parts, the key factors were not only high dimensional accuracy but also manufacturing repeatability, consistent quality, and production process optimization. These factors are decisive in CNC series production, where the emphasis is placed on efficiency and consistent results. The project began with a thorough analysis of the technical documentation, including drawings, tolerances, and the provided 3D model. This step is essential for the correct setup of CNC machining, the selection of appropriate tooling, and the determination of optimal manufacturing technology. Requirements for material, surface quality, and functional dimensions were also taken into account, as they have a fundamental impact on the components' practical application. The actual production was carried out on modern CNC machines capable of precision milling. CNC technology ensures strict adherence to dimensions according to the drawing documentation and minimizes the risk of deviations between individual pieces. Thanks to correctly configured CNC programs and optimized cutting conditions, high productivity was achieved without compromising quality. The manufacturing process was specifically optimized for series production, which included clamping adjustments, downtime minimization, and streamlining tool changeover times. In this way, we succeeded in reducing production times while ensuring stable dimensional repeatability throughout the entire series. Each manufactured piece met the same quality standards, which is crucial in series production. The process also included dimensional and quality inspections of the manufactured parts. Critical dimensions were continuously verified using measuring instruments and, where necessary, via 3D measurement. This inspection system ensured that all components met the required tolerances and were fully compliant with the provided 3D model and drawing documentation. The project resulted in the successful CNC series production of components that met all customer requirements for precision, quality, and repeatability. The optimized manufacturing process enabled the delivery of the required volume of parts within the agreed deadlines while maintaining a high level of quality. This approach confirms that the combination of high-quality documentation, modern CNC technologies, and rigorous inspection is the foundation of reliable series production.