Development of high-performance end mill

A high-performance end mill was newly developed by combining the advantages of both conventional-form end mills and special-form end mills developed to date for machining very hard materials and then adding certain improvements. The new end mill is capable of milling very hard materials at high speeds and, besides, offers a longer tool life. The research conducted has revealed that the high-performance end mill does provide such excellent characteristics as allow to conduct good cutting in very hard materials at high speed and high feed, which could hardly be expected with conventional-form end mills.