3M Hookit Blue Abrasive Disc 321U Multi-hole, 36159, 5 in, 120, 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 Brand

The 3M Hookit Blue Abrasive Disc 321U Multi-hole is a reliable choice for professionals seeking quality and performance. This model combines 3M’s expertise with a hook-and-loop attachment system for easy disc changes and secure fit.

Designed for efficiency, the 3M Hookit system allows quick removal and reattachment of discs, making it ideal for busy shops. The 321U model supports a variety of sanding tasks with consistent results.

Precise 5 Inch Size

This abrasive disc measures 5 inches in diameter, providing a perfect balance of surface coverage and control. The size suits many sanding tools and applications, making it versatile for paint prep and coatings removal.

With the 5-inch dimension, users can handle detailed work or larger surfaces efficiently. This size also aligns well with most backup pads, enhancing dust extraction and sanding performance.

Grade 120 Abrasive Quality

The disc features a 120 grit grade, offering a medium level of abrasiveness suitable for smoothing surfaces and removing coatings. This grade is effective for blending and preparing surfaces before finishing.

120 grit strikes a balance between cutting speed and finish quality, making it a popular choice for automotive and industrial sanding tasks. It helps achieve a smooth, even surface ready for the next step.

Multi-hole Dust Extraction

The 321U model includes a multi-hole pattern designed to optimize dust extraction during sanding. This pattern reduces clogging and keeps the abrasive surface clean for longer-lasting performance.

Multi-hole discs improve air flow and dust capture, which means less downtime for cleaning and better visibility of the work area. This feature supports a healthier work environment and consistent sanding results.

Bulk Pack Convenience

This product comes in a pack of 50 discs per carton, with 4 cartons per case, providing a total of 200 discs. Bulk packaging ensures you have plenty of discs on hand for continuous work without frequent reordering.

Buying in bulk is cost-effective and reduces downtime caused by running out of supplies. The pack size suits busy shops and professionals who need reliable access to quality abrasive discs.