Our 36 grit Incinerator belts are the latest fragmenting abrasive technology. They are designed to directly compete with the 3M Cubitron belt. In our testing, these belts have lasted 3x longer than our standard ceramic belts and 2x longer than the 100% Cubitron 2 abrasive belts (please note 3M produces Cubitron blend belts that are marketed as Cubitron. Those belts are lower cost and lower performance).