The 3M Hookit Blue Abrasive Sheet Rolls 321U delivers best-in-class performance at every stage of paint prep and coatings removal. Premium aluminum oxide mineral is blended with ceramic grain for a full range of sanding applications. A specially-designed multi-hole pattern captures dust, reduces loading and extends sheet life. Perforated Hookit sheets are easily sized to reduce product waste.Best-in-Class Performance on a Wide Range of Jobs Part of our full line of 3M Blue Abrasives, the 3M Hookit Blue Abrasive Sheet Rolls is engineered for best-in-class cut, life and efficiency across your entire shop. The sheet roll features a tough ceramic blended with premium aluminum oxide mineral that provides just the right balance. 3M Blue Abrasives deliver consistently excellent results in a minimum amount of time, on jobs ranging from aggressive paint removal and fresh filler sanding to blend preparation and sanding primer. The 3M Hookit Blue Abrasive Sheet Rolls is bonded using upgraded resins for enhanced durability. Sheet rolls are available in a wide range of grades. The sheets are perforated, which makes it easy to choose desired lengths for hand files or blocks without fold-over for reduced product waste. Dust Extraction Features Enhance Abrasive Life The multi-hole pattern on this sheet roll is specially designed to capture dust and keep it away from the abrasive surface. This specially-designed hole pattern reduces loading and extracts dust more efficiently compared to standard hole configurations. An anti-loading coating across the abrasive surface helps keep dust from gathering between the abrasive grains for a faster cut and for consistent performance throughout the life of the sheet. Our Hookit Attachment System The Hookit attachment system has a hook-and-loop feature which makes sheet attachment, removal, and re-attachment clean and easy. It also facilitates use and re-use of the sheet for maximum product life. Hookit sheets have a brushed nylon loop backing of the type most commonly used in everyday hook-and-loop applications. A range of Hookit file boards and blocks, such as the 3M Hookit Sanding Block Dust Free PN 05208 or 3M Hookit Hand Block PN 05741 (both sold separately), feature hooks which grip the brushed nylon loop backing. It’s simple: just attach the sheet and start sanding. The sheet removes just as cleanly and easily. The Hookit system is designed for work spaces and applications where adhesive backed abrasives may become contaminated by dust, dirt, or debris. Better Science for Better Sanding from 3M Our 3M Blue Abrasives family is designed as a cost-effective, high-performance upgrade for any sanding application in coatings removal and paint preparation. From its balanced, engineered mineral blend to its multi-hole pattern for dust extraction, our 3M Hookit Blue Abrasive Sheet Rolls is another way that 3M applies science to deliver best-in-class performance for professionals.