The hardest abrasives in the world. CBN and diamond

Greatest precision when grinding high-hardness iron and steel alloys or brittle-hard materials. The best removal rates and the longest service life still offer the toughest materials in the world: CBN and diamond. 
Cubic boron nitride - CBN for short - is particularly suitable for hard-to-machine and high-alloyed hardened steels from 54 HRC upwards. These include high-speed, tool or chrome steel, powder metallurgy steels or chilled cast iron. Due to its affinity to iron, 

diamond is mainly used for processing hard brittle materials. In addition to tungsten carbide and ceramics, this also includes glass and granite. Due to the trend towards ever harder wear protection layers, diamond is often chosen for economical processing.

The hardest abrasives in the world. CBN and diamond