o These 600 grade sheet rolls are used for primer sanding and blend preparation.o Better cutting and long lasting abrasive sheet roll for primer sanding and blend preparationo Reliable dust-extraction and reduced loading due to multi-hole patterno Engineered ceramic mineral blend provides best-in-class performance using exactly the right balance of ceramic grain and premium aluminum oxideo Anti-loading coating improves abrasive life while upgraded resins improve durability and finisho Convenient sheet roll format to match sheet length to sanding block