In recent years, the modern machining equipment represented by the machining center and its technology have put forward high requirements on the tools; the precision, the service life and the structure of the tools have become increasingly high Become a bottleneck affecting the processing capacity and production efficiency, expensive tools have also become a very large part of the cost of production. Therefore, reworking (regrinding) tools and bits becomes a problem not to be neglected in the manufacturing industry, which also makes the user of the tool also put forward new requirements on the choice of tool grinding machine.