Our 3M™ Hookit™ Blue Abrasive Disc 321U delivers best-in-class performance at every stage of paint prep and body repair. Premium aluminium oxide mineral abrasive is blended with ceramic grain for a full range of automotive sanding applications. Specially-designed multi-hole pattern reduces loading, extends disc life and aligns with most backup pads. Hookit™ attachment makes disc changes easy.
Best-in-class value leaves the competition in the dust — literally. Multi-hole Discs are specially designed to improve anti-loading and boost dust extraction for improved productivity and a cleaner work environment. The multi-hole pattern captures dust, keeping the abrasive open for a faster cut and consistent performance throughout the life of the disc. 3M Blue Abrasives are your go-to workhrose for the entire shop. 3M’s engineered ceramic mineral blend delivers best-in-class cut and life. An anti-loading design and the available universal multi-hole pattern extend the life of the abrasive for consistent performance. A full line of discs is available in an array of grades for use throughout the repair process. Available in the 3M™ Hookit™ attachment system — from body repair to paint prep, BLUE is all you need.
Attachment Type | Hook & Loop |
Backing Material | Paper |
Backing Weight | C Weight |
Brands | Hookit™ |
Coat Type | Closed Coat |
Grit | 40, 80, 120, 150, 180, 220, 400, 500, 600, 800 |
Mineral Type | Ceramic Aluminum Oxide |
Number of Vacuum Holes | 118 |
Performance Level | Better |
Product Form | Disc |
Sanding Method | Hand, Machine |
Vacuum Support | Yes |
Wet or Dry | Dry |
Overall Diameter (Metric) | 152.4 mm |