- 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 Quality
The 3M Hookit Blue Abrasive Disc 321U Multi-hole is a reliable choice for professionals. This model combines 3M's trusted brand with the Hookit attachment system for easy disc changes and secure fit.
Designed for efficiency, the 321U model supports a variety of sanding tasks. Its multi-hole format enhances dust extraction, making it ideal for clean, fast sanding jobs.
Precise 6 Inch Size
These abrasive discs come in a 6 inch diameter, providing a perfect balance between coverage and control. This size fits most standard sanding tools, ensuring versatility in your workshop.
With a 6 inch dimension, the discs are suitable for detailed work and larger surface areas alike. This size supports consistent sanding results across many applications.
Durable 600 Grade Abrasive
The 600 grade on these discs offers a fine abrasive level, ideal for smooth finishes and delicate surface preparation. This grade helps achieve professional results without over-sanding.
Using a 600 grit disc is perfect for tasks like paint prep and coatings removal. It balances cutting power with surface refinement for a clean, polished outcome.
Convenient 50 Disc Packs
Each carton contains 50 discs, providing plenty of supply for ongoing projects. This pack size supports efficient workflow without frequent reordering.
With 4 cartons per case, you get a total of 200 discs, making it cost-effective for busy shops. The bulk packaging helps keep your sanding supplies well-stocked.
Effective Multi-Hole Format
The multi-hole design on these 3M discs improves dust extraction, reducing clogging and extending disc life. This format supports cleaner sanding and better visibility during work.
Multi-hole discs align easily with most backup pads, enhancing compatibility. This feature ensures the discs stay securely attached and perform consistently throughout use.
