The vitrified, resin, metal or hybrid bonded diamond wheels represent a development of the research in superabrasives and are used always more in many different applications: different precision grinding operations, cutting tools production, tool sharpening and many others.
The CBN (Cubic Boron Nitride) hardness is just lower than the diamond. Compared to conventional abrasives CBN has many advantages in terms of hardness, chemical and thermal resistance, shape holding and thermal conductivity.