NTI Diamonds SF859-012 5/PK In order to ensure the best quality diamonds, NTI® Diamonds utilize German technology known as Unimatrix® Diamond Bonding. Using this bonding process, diamonds are uniformly placed on the tips and edges, preventing clogging and improving cutting performance. Designed to provide a comprehensive solution, with strict adherence to ISO certification standards as well as a wide selection, NTI® Diamonds from KaVo Kerr are available in packs of 5. Popular shapes may be ordered in packs of 50.