- 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 Multi-hole, model 36168, is designed for professionals who need reliable sanding solutions. This brand and model offer consistent quality and performance for various applications.
With the Hookit attachment system, disc changes are quick and clean. This model supports easy removal and re-attachment, making it ideal for busy workshops and frequent use.
Precise 600 Grade Abrasive
This abrasive disc comes in a 600 grade, providing a fine sanding finish suitable for paint prep and coatings removal. The grade ensures smooth results without damaging the surface.
Its engineered ceramic mineral blend balances cut and durability, making the 600 grade effective for blending primer and fresh filler sanding tasks.
Optimal Five Inch Size
The discs measure 5 inches in diameter, a versatile size that fits most standard sanding tools. This dimension supports a wide range of sanding jobs, from detailed work to larger surface areas.
Five-inch discs are easy to handle and align with backup pads, especially with the multi-hole pattern designed for efficient dust extraction during use.
Multi-Hole Dust Extraction
The multi-hole format enhances dust extraction, reducing clogging and extending disc life. This pattern is specially designed to keep the abrasive surface clean and working efficiently.
Compared to standard hole configurations, the multi-hole discs improve dust removal and include alignment guides for quick setup with backup pads.
Bulk Pack Convenience
This product comes with 50 discs per carton and 4 cartons per case, providing a large supply for continuous work without frequent reordering. Bulk packaging is cost-effective for busy shops.
Having 200 discs in total ensures you have enough abrasives for multiple projects, reducing downtime and keeping your workflow steady.
