Abstract
This article has been handled of statistics pursing of capability process of turning by screws production in RIBE Slovakia, k.s. Objective of the statistical assessment process is to determine whether all major manageable causes of instability of the process have been removed. The basis for statistical regulation is management of production processes. If a process operates with large number of random effects, the resulting distribution has the character of a normal distribution. As the result showed on based of quality control charts for average and standard deviation (X, R) we are able to say that the turning process is under the statistics control.