From the recognized leader in abrasives, Mill-Rose brings you Blue Monster premium open mesh and Ultra-Flex® abrasive cloth. These revolutionary, high-performance abrasives are tough! Blue Monster outlasts all others in the most demanding conditions, wet or dry. Ideal for debarring and cleaning tubing, fittings and parts, Blue Monster works on copper, brass and other metals, as well as all types of plastic. Blue Monster's exclusive extra width (33 1/3% more material) provides more cleaning surface for large diameter tube and fittings. Blue Monster Abrasive Cloths provides contractors with more surface-to-surface coverage.