The 3M Xtract Cubitron II Disc 775L is a part of the 3M Xtract Series, meaning that it is specially designed for optimal dust removal. Featuring an innovative, multi-hole pattern that extracts dust better than 5 or 6-hole products, this product delivers dramatically increasing disc life — without the need to align the disc pad holes. This product also uses ceramic 3M Precision-Shaped Grain, a revolutionary advancement in abrasive technology comprised of triangular-shaped ceramic mineral designed to slice through the substrate, rather than gouging or plowing like conventional abrasives. This results in a disc that cuts quickly and efficiently. Additionally, the 3M Xtract Cubitron II Disc 775L has a film backing that delivers outstanding tear resistance, flexibility, and a consistent, uniform finish on a variety of substrates, including metals, composites, gelcoat, and whitewood. For best results, pair this disc with a 3M Xtract Random Orbital Sander.