The goal of the article was to determine the capability of the manufacturing process of turning component ,,the turbine hub.” The subject of the practical part is to measure 4 specific parameters on 100 collected samples. Measured results have been evaluated according to the specified methodology. It was being determined whether the variability and average of the process are in the statistically mastered state. The second parameter of the process did not complied with this requirement in three cases. Identified results of each four parameters are: first:Pp=1.803, Ppk=1.886. The process is capable when Pp/Ppk .≥ 1.67. Production process was fully capable.