Features and Benefits:

• Suitable for use on metal, paint, clear coat, body filler, plastic, primer, putty, and composites
• Fast, consistently sharp cut
• Long disc life, with reliable performance & finish
• Loading resistant coating helps reduce premature loading / clogging and extend abrasive life
• Easy and reusable hook-and-loop system
• Available in a variety of grades, sizes and hole patterns.



3M Hookit Blue Abrasive Disc 521U is a paper-backed abrasive disc with excellent performance and cut. It is available in a range of grades and sizes.