CNC DISK-TYPE MACHINING PROCESS Our four-axis CNC milling machine integrated with DD mechanism (Direct driving) may perform turning operation, this is specialized in machining disk-type components, efficiently handling both large and small diameter parts. Home » Precision Machining » CNC DISK-TYPE MACHINING PROCESS Our four-axis CNC milling machine integrated with DD mechanism (Direct driving) may perform turning operation, this is specialized in machining disk-type components, efficiently handling both large and small diameter parts.