Cutter for processing inside and outside round co-axiality concentric rod

The utility model relates to an internal and external proper alignment proper mandrel rod processing cutting tool, which compises a locator mandrel, a tool apron, a bit and a connection board, the bit is fixed on the tool apron through the cutter body, the locator mandrel is fixed on the connection board by the locking nut, the tool apron locking bolt goes through the connection board adjustment through hole and the feather key and fixes the tool apron on the connection board, the connection board is arranged with an adjusting screw. The utility model can guarantee the internal and external proper alignment precision processing, and satisfies the internal and external proper alignment through manual or ordinary equipment operation. The manufacture of the cutting tool is simple, the external diameter and taper are guaranteed by the cutting tool in the actual use and cannot be influenced by the handwork or the equipment, the operation is easy, the processing quality is easy to be guaranteed, and the processing efficiency is high.