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 deburring and cleaning tubing, fittings and parts, Blue Monster® works on copper, brass and other metals, as well as all types of plastic. Blue Monster® 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.