What method does groovy form milling have? Answer: (1) cut a law to make a round trip all right to connecting groove to use mill is cut; (2) close groove cuts a way all right to be used first, cut a way with annulus finally one knife light makes outline appearance; (3) close to taking those who have the islands with raised appearance groove, the nodical number that takes cutter track line and outline in order to assure every time is not a principle more than two times, islands two side regard two as inside groove undertakes cutting respectively, cut means to cut one knife to essence of outline of inside and outside of whole chamfer form with annulus finally CNC Milling