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The 3M Hookit Purple Clean Sanding Abrasive Disc 30761 is a fast-cutting, long-lasting abrasive disc that can help improve the quality of your collision repair jobs. Built with a durable, fast-cutting aluminum oxide abrasive on C-weight paper backing, the spiral-patterned holes help keep dust particles away from the cutting surface when used with or without a dust extraction system. Discs can last up to 3 times longer as a result. Changing out discs has also never been easier or faster, thanks to the unique Hookit design. Discs are ideal for a variety of metalwork tasks like scuffing before painting, clear coat sanding and primer sanding jobs. 3M Hookit Purple Clean Sanding Abrasive Disc 30761 combines performance, durability and long-lasting efficiency in any auto repair shop.