- A best-in-class abrasive for the entire repair and paint prep process
- Engineered ceramic mineral blend is balanced for maximum abrasive performance in its class
- Multi-hole pattern delivers excellent dust extraction and reduces loading
The 3M™ Hookit™ Blue Abrasive Disc 321U delivers best-in-class performance at every stage of paint prep and body repair. Premium aluminum 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.