3M Hookit Blue Abrasive Disc 321U Multi-hole, 36153, 3 in, 600, 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.

3M Hookit Blue Brand

The 3M Hookit Blue Abrasive Disc 321U is a trusted choice for professionals seeking reliable sanding solutions. This model combines 3M's expertise with the Hookit attachment system for easy disc changes and secure fit.

Designed for efficiency, the 321U model supports a variety of sanding tasks, making it a versatile option in any workshop. Its brand reputation ensures consistent quality and performance.

Multi-Hole Format Benefits

This abrasive disc features a multi-hole pattern that enhances dust extraction during sanding. The design reduces clogging and keeps the cutting surface clear, improving overall efficiency.

With 50 discs per carton and 4 cartons per case, the multi-hole format supports extended use in busy environments. The pattern also aligns easily with most backup pads for quick setup.

Grade 600 Sanding Quality

The 600 grade of this 3-inch disc offers a balanced abrasive performance suitable for paint prep and coatings removal. It provides a smooth finish while maintaining effective cutting power.

Ideal for tasks requiring fine sanding, the 600 grade helps achieve professional results. Its engineered ceramic mineral blend ensures durability and consistent performance throughout its life.

Compact 3 Inch Size

Measuring 3 inches in diameter, this disc fits a wide range of handheld sanders and tools. Its size allows for precise control in detailed sanding applications.

The compact dimensions make it suitable for both small and medium surface areas. This size is practical for automotive, woodworking, and general finishing tasks.

Bulk Pack Convenience

Each case contains 4 cartons, with 50 discs per carton, totaling 200 discs. This bulk packaging supports high-volume sanding needs and reduces the frequency of reordering.

Having a large quantity on hand is ideal for busy shops or production lines. The pack size ensures you have enough discs to maintain workflow without interruption.