Disc type = sanding disc. Abrasive material = silicon carbide. Type = Extra Coarse Scotch Brite TM Clean and Strip XT Pro and XT Pro Extra Cut show consistently higher adaptability. Features and advantages. Large contact area for quick removal rates compliant with contoured or hard-to-reach spaces. Provides an even, even surface. Gentle parts. Applications metalwork metal processor removes rust. Colour, roller scale and coatingsWhy 3M?3M is a leading innovator in grinding technologies that are constantly evolving to provide ideal solutions for industrial and commercial applications. With 3M you can trust in a wide range of quality products.