Emery roll with blue twill backing. Cloth is flexible and tear resistant offering greater precision when finishing or polishing metal. Not for use on wood.
This 3M 747D Cartridge Roll is ideal for metal finishing in small hard to reach areas like corners or inside pipes. They are made from a blend of aluminum oxide and 3M ceramic grain on a strong cotton backing around a solid mandrel core. The ceramic aluminium oxide blended mineral breaks down to reveal sharp cutting edges, and the anti-friction grinding aid helps to reduce grinding temperatures to allow the abrasive to run smooth.