3M™ Hookit™ Blue Abrasive Disc 321U are engineered to deliver great performance and finish in the finer grades to make paint prepping fast and consistent every time.

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.

• Engineered ceramic mineral blend provides best-in-class performance using exactly the right balance of ceramic grain and premium aluminum oxide
• Anti-loading coating improves disc life
• Upgraded resins improve durability and finish
• 3M™ Hookit™ universal multi-hole pattern with alignment guide: Reduces loading for improved performance, Improves dust extraction efficiency compared to 6 and 7 hole patterns, Aligns with majority of dust extraction back-up pads
• 50 discs per box