All milling machines we use are CNC machines, or numerically controlled machining centres. In addition, the machines have built-in automatic tool magazines, with which machining is made on the element without having to be moved to another machines. With minimal waste of time, we can start machining the counter-rotating element, and then automatically switch to concurrent processing, thanks to which the material will be continuously pressed by the tool and will minimise the risk of cracks at the entry and exit of the tool.