The 3M™ Cubitron™ II File Belt 33443 is a long-lasting, advanced belt that delivers a 30% faster cut and double the life of other premium abrasives. The heavy-duty file belt gives a fast cut on high-strength steel and hard metal, and delivers maximum performance when paired with the 3M™ File Belt Sander. Ideal for tough detail work like cleaning, deburring, and corrosion removal, the 3M™ Cubitron™ II File Belt 33443 is a versatile belt that stays strong and lives long.