The Kummer concept of precision does not stop at highlighting a very fine degree of CNC resolution, nor at commissioning basic machines based on static geometric tests of the spindle nose at a given point of time which, a......The Kummer concept of precision does not stop at highlighting a very fine degree of CNC resolution, nor at commissioning basic machines based on static geometric tests of the spindle nose at a given point of time which, although highly accurate, has no direct link with the true conditions of practical machining. While we agree that criteria such as these are indispensable as a base, we maintain that they are just that: the potential of a system to deliver high precision. Building on that base, the qualities concerned must be exploited to their full extent, at all stages of the complex process which constitutes machining metal parts at high levels of productivity. Thus, in our concept of precision, the true challenge is that of turning the potential accuracy of the system into a measurable quality of the machined parts. We reach this goal thanks to the rigidity and the neutral thermal response of the machine, while mastering harmoniously all of the numerous influencing factors such as parts clamping, sequence of operations, feeds and speeds, material deformation, tool wear… always keeping in mind productivity and especially guaranteeing the reliability of the machining solution. We invite you to give us details of your specific machining problem. We will be glad to demonstrate our capacity to master your tolerances in a way that is productive, cost-effective and reliable