Having very high hardness and excellent wear resistance, the abrasive materials Diamond and Cubic Boron Nitride (CBN) have many applications in the processing of hard brittle materials for instance sintered-carbide tooling, patterns, pottery, glass, stone and semiconductors as well as many others. These abrasives are long lasting at extremely high speeds and have a significant cost-saving impact on the processing of ordinary steel materials. Such abrasives maintain accurate profiles for extended periods of use which is especially well-suited to continuous high accuracy grinding with automated and semi-automated equipment. They are valuable in the economical management of multi-machine production facilities.