3M 36150 3M™ Hookit™ Blue Abrasive Disc, 321U, 36150, 320, 3 in (76.2 mm), Colour: Blue, 3M Stock No. 7100215961

From body repair to paint prep, 3M™ Blue Abrasives are all you need. Engineered with a ceramic mineral blend, 3M™ Hookit™ Blue Abrasive Discs deliver best-in-class performance at every stage, with a specially-designed multi-hole pattern that helps reduce loading and extend disc life, while easily aligning with most backup pads.