The F11 series(incluing FW80) universal dividing head is one of the most important attachmenets for milling machine.With the help of this dividing head the workpiece held between centers,or on a chuck can be rotate to any angle as desired and the periphery of a workpiece can be divided into any divisions of equal parts.By means of all kinds of cutters,the dividing head can also help milling machine to perform the milling operation for flute spir gear,spiral gear,spiral flute,Archimedean cam,helical flute and etc.