Flex5plus are aggregate's with the tool interface HSK-F63. These can be exchanged via the tool changer. The Flex5plus interface makes processing with 5 axes possible on a 4-axis machine with the appropriate aggregates. The 5th axis is a positioning axis and cannot be an interpolating axis due to the principle. The adjustment of the 5th axis is performed between individual processing steps by the drive of the C-Axis.