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.
Use the 3M™ Hookit™ Blue Abrasive Disc 521U for sanding on collision repair substrates like paint, primer, metal and composites. It is a fast-cutting paper-backed disc with durable E-weight paper backing for excellent cut and long lasting performance. The Hookit™ system features hook-and-loop attachment for easy, reusable application.
3M industrial and occupational products are intended, labelled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labelled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards, as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.