The quick change tool post is a major spare part of the ordinary machine tools.It is
composed of the cutter-cartridge,body and the tool-holder for various cutting tools for
processing works like cylindrical facing,cutting ,knurling,drilling,enlarging boring and
reaming,etc.The height of tools can be regulated and positioned retative to the center
line of machine spindle.It features external tool-mounting,tool-matching, quick tool-
changing,great precision in positioning and great hardness etc.