Quality control has become a very important part in the production processes. Product development has increased also their complexity. This resulted in new requirements for quality control. Therefore, in recent years have developed many methods for coordinate measuring quality control. In this paper, comparison of tactile measurement coordinate measuring device and optical measurement methods 3D digitizer (scanner) is made from practical point of view. Two methods were compared by measuring the real casted product from the automotive industry which is one of the most demanding in terms of quality control. Measured object was aluminum casted cover of car differential. Measurements were performed on tactile measuring device Ferranti Merlin 750 located in the Laboratory for precise measurement of length (FSB, Zagreb) and optical 3D digitizer GOM ATOS CORE 300 located in the Topomatika Ltd. measurement laboratory (Zagreb). Comparison of the results showed that the optical measuring device provided much more information about the measuring sample in a shorter time compared to tactile device. By comparing measurement reports [Appendix III and IV], which are made on both devices according to the measuring plan in the technical documentation, difference in the amount of measurement results obtained by the optical measuring device relative to the tactile device is clearly visible. A large amount of information which is obtained by optical measurement device provides quick answers to problems that arise in measuring samples, and provides a new approach to quality control especially in the control of geometrical shape and position tolerances. According to the results obtained in this work by bringing optical measurement method in Qulity control shortens the time from sample preparation to final measurement reports for 28% in manual mode and by 77% in the automated measurement method. Also 13% of measuring points was not possible to measure in manual mode measurement on CMM device, and the time required for automated measurement assessed on the basis of operator experience.