Diamond grinding wheels are made of diamond powder, and there have the bond types of metal, resin, vitrified and electroplated bond. They are round bonded abrasive tools with central through-hole. They consist of diamond layer, transition layer and matrix.
Vitrified bond diamond grinding wheel is a kind of circular bonded abrasive with through-hole in the center. It is made of diamond powder and ceramic bond. It consists of diamond layer, transition layer and matrix.