3M Hookit Blue Abrasive Disc Multi-hole, 3", 500 Grade

These 500 grade discs are used for primer sanding Better cutting and long lasting abrasive disc for primer sanding Reliable dust-extraction and reduced loading due to multi-hole patternReliable dust-extraction and reduced loading due to multi-hole pattern 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 abrasive life while upgraded resins improve durability and finish Suggested backup pad PN20427 and interface pad PN05771