3M Hookit Blue Abrasive Disc 321U Multi-hole, 36160, 5 in, 150, 50 discs per carton, 4 cartons per case

• A best-in-class abrasive for a variety of applications
• Anti-loading coating prevents dust and debris from clogging the cutting surface
• Discs available in mutli-hole pattern for excellent dust extraction or in no-hole format
• Engineered ceramic mineral blend is balanced for maximum abrasive performance in its class
• Upgraded resins improve durability and finish

The 3M Hookit Blue Abrasive Disc 321U delivers best-in-class performance at every stage of paint prep and coatings removal. Premium aluminum oxide mineral abrasive is blended with ceramic grain for a full range of sanding applications. The multi-hole discs feature a specially-designed pattern that reduces loading, extends disc life and aligns with most backup pads. Hookit attachment makes disc changes easy. Best-in-Class Performance in Every Grade Part of our full line of 3M Blue Abrasives, the 3M Hookit Blue Abrasive Disc is engineered for best-in-class cut, life and efficiency across your entire shop. The disc features a tough ceramic blended with premium aluminum oxide mineral for 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. Discs are available in a wide range of sizes and grades. Dust Extraction and Anti-Loading Features Enhance Performance and Life The multi-hole pattern discs are 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 6- or 7-hole disc configurations. It includes alignment guides across the disc, making it fast and easy to align with nearly any backup pad. The mineral blend on the 3M Hookit Blue Abrasive Disc is bonded using upgraded resins for enhanced durability. An anti-loading coating helps keep dust from gathering between the abrasive grains for a faster cut and for consistent performance throughout the life of the disc. Our Hookit Attachment System The Hookit attachment system has a hook-and-loop feature which makes disc attachment, removal, and re-attachment clean and easy. It also facilitates use and re-use of the disc for maximum product life. Hookit discs have a brushed nylon loop backing of the type most commonly used in everyday hook-and-loop applications. 3M Hookit disc pads (sold separately) feature hooks which grip the brushed nylon loop backing. It’s simple: just attach the disc and start sanding. The disc removes just as cleanly and easily. The Hookit system is designed for work spaces and applications where adhesive backed discs 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 option for dust extraction, our 3M Hookit Blue Abrasive Disc is another way that 3M applies science to deliver best-in-class performance for professionals.

Trusted 3M Hookit Model

The 3M Hookit Blue Abrasive Disc 321U Multi-hole is a reliable choice for professionals. This model combines 3M’s trusted abrasive technology with a multi-hole design for efficient dust extraction.

Its Hookit attachment system makes disc changes quick and clean. The 321U model is designed to fit most backup pads, ensuring compatibility and ease of use in various sanding tasks.

Effective Multi-Hole Format

The multi-hole pattern on the 3M Hookit Blue Abrasive Disc 321U improves dust extraction and reduces loading. This design keeps the abrasive surface clear, maintaining cutting efficiency throughout use.

Compared to standard 6- or 7-hole discs, this multi-hole format offers better dust capture. It also includes alignment guides, making it simple to position on backup pads for consistent sanding results.

Precise 5 Inch Size

Each disc measures 5 inches in diameter, a versatile size suitable for many sanding applications. This dimension balances control and coverage, making it ideal for paint prep and coatings removal.

The 5-inch size fits a wide range of tools and is part of the 3M Blue Abrasives line, designed to deliver consistent performance across different sanding tasks and surfaces.

Grade 150 Abrasive Quality

The discs come in grade 150, offering a medium abrasive level for effective sanding without over-aggressiveness. This grade is well-suited for blending, paint removal, and surface preparation.

Grade 150 balances cut rate and finish quality, making it a versatile choice for professionals who need reliable results in various stages of paint and filler work.

Bulk Pack Convenience

Each carton contains 50 discs, and there are 4 cartons per case, providing a total of 200 discs per case. This pack size supports high-volume use and reduces the need for frequent reordering.

Buying in bulk ensures you have enough discs on hand for extended projects. It also offers cost efficiency and convenience for busy workshops and professional settings.