"SUMIDIA Binderless" is the new material that has been developed by Sumitomo Electric Industries, Ltd. Ultra fine particles in size of several tens of nanometers have been bonded firmly without the use of binding material, providing hardness that exceeds signal crystal diamond. Also there is no crystal anisotropy and cleavage. We have combined this material with our strong point, diamond precision polishing technology, to realize the tool that is very strong against chipping more than ever and long tool life. SUMIDIA is the registered trademark of Sumitomo Electric Industries, Ltd.
Machining of cemented carbide glass lens molds, prism sheet large roll molds, light guide plate large molds, glass lenses and other high hardness and brittle materials