Milling cutter is the whirl that has one or more tooth cutting tool, its spend the important and referenced index that is production treatment industry subtly. 5 mine of Chinese are belonged to in company of new and high Jin Zhou develops tungsten successfully recently diameter the dinky diameter milling cutter of 0.01 millimeter, came true to go up machine treatment. Use this kind to be the dinky diameter milling cutter of 1/8 of diameter of human hair silk about, personnel of research and development gave 56 Chinese characters in a Mi Shangxi, on silk of a hair mill gave 7 letters.
According to introducing, this breaks through what wait for information of electron of the our country that help strength, medical treatment a lot of domain to carry upgrade character, also will make miniature machine a tool to develop more quickly better.