You expect performance but can you expect perfection? We like to believe so. The precision of our products ensures the perfection of yours. Mitsubishi Materials is an industry-leading manufacturer of cutting tools & solutions for the manufacturing industry based in Tokyo, Japan, with more than 24,000 employees worldwide. DIAEDGE Cutting Tools are precisely crafted by Mitsubishi Materials to give you more control… ease of use, faster implementation, dependability, repeatability, and consistent quality.