The 3M Cubitron 3 grinding wheel is an extremely fast-cutting and durable, rigidly bonded wheel designed for removing welds and other heavy grinding applications. It features a recessed center that allows for grinding at any angle and is suitable for use on almost all materials, with a special formulation for stainless steel, structural steel, and aerospace alloys. The 3M Cubitron 3 grinding wheel utilizes the revised 3M Precision Shaped Grain, which incorporates patented micro-fractured pieces of molecular bonding technology. Its structure is designed to continuously break during the grinding process, consistently forming many sharp cutting edges. These smooth, sharp edges help create an abrasive that cuts faster, grinds cooler, and lasts much longer than conventional abrasives. 3M high-performance abrasives are designed for professionals who expect more.