The Milwaukee 49 36 0805 is a genuine 3 inch replacement backing pad designed for the M12 Variable Speed Polisher Sander 2438 20. It features a hook and loop surface for quick abrasive changes and an M9 x 0.75 threaded hub that provides a secure connection during high speed operation. Constructed from high grade, heat resistant materials, the pad withstands the stress of demanding polishing and sanding tasks. Engineered for precise compatibility with the 2438 20, it delivers balanced performance and long service life for professional surface preparation work.