- 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 is a reliable choice for professionals seeking consistent sanding results. This exact model, 36259, is designed to meet high standards in abrasive performance.
Its Hookit attachment system allows quick disc changes and secure fastening, making it easy to use in various sanding tasks. The 5 inch size fits most standard backup pads for convenience.
Precise 320 Grade Abrasive
This abrasive disc comes in a 320 grade, ideal for fine sanding and finishing work. The grade ensures smooth surface preparation without over-sanding or damaging the material underneath.
Using the 320 grade disc helps achieve a professional finish on paint prep and coatings removal, making it suitable for detailed automotive or woodworking projects.
Durable 5 Inch Size
The 5 inch diameter of these abrasive discs offers a balance between coverage and control. This size is versatile enough for both broad surface sanding and more precise edge work.
Its compatibility with common sanding tools makes it a practical choice for workshops and job sites, ensuring efficient sanding without frequent tool changes.
Efficient Hookit Attachment System
The Hookit system featured on these discs uses a hook-and-loop backing for easy attachment and removal. This design reduces downtime and allows for quick disc swaps during projects.
It also supports reusing discs multiple times, maximizing product life and reducing waste. The system works well in dusty environments where adhesive discs might fail.
Bulk Pack Of 200
This product comes as a case of 200 discs, packaged in cartons of 50. Buying in bulk ensures you have a steady supply for ongoing sanding needs without frequent reordering.
The large pack size suits professional shops or contractors who require consistent abrasive availability for multiple projects or large-scale work.
