Cubic Boron Nitride (CBN) is a synthetic material known for its exceptional hardness, second only to diamond. It is primarily used in industrial applications, particularly for cutting, grinding, and drilling hard materials. CBN is chemically stable at high temperatures, making it ideal for machining ferrous metals, which can degrade other abrasives. CBN is produced through high-pressure, high-temperature processes that convert boron nitride into its cubic form. Its unique properties allow it to maintain sharp cutting edges and resist wear, enhancing the efficiency of tools. CBN is often found in abrasive wheels, cutting tools, and coatings for various manufacturing processes.