The industrial Revolution was a catalyst in the rapid and gigantic growth of the auto and heavy machinery industries. As more and more "difficult-to-grind" rnaterials and alloys were being used by these industries, the demand for higher quality, effective, and durable machine tools for cutting, grinding, and machining such materials continued to escalate. As a result, superabrasive diamond and cubic boron nitride (CBN) tools were invented to meet the needs of these industries and their heavy requirements.
