The 3M™ Hookit™ Blue Abrasive Disc 321U delivers best-in-class performance at every stage of paint prep and body repair. Premium aluminum oxide mineral abrasive is blended with ceramic grain for a full range of automotive sanding applications. Specially-designed multi-hole pattern reduces loading, extends disc life and aligns with most backup pads. Hookit™ attachment makes disc changes easy.
- A best-in-class abrasive for a variety of applications
- Engineered ceramic mineral blend is balanced for maximum abrasive performance in its class
- Discs available in mutli-hole pattern for excellent dust extraction or in no-hole format
- Anti-loading coating prevents dust and debris from clogging the cutting surface
- Upgraded resins improve durability and finish
|Diameter||3 in||76.2 mm|
What is the 3M™ Hookit™ Blue Abrasive Disc 321U Multi-hole used for?
The 3M™ Hookit™ Blue Abrasive Disc 321U multi-hole is an abrasive disc that's most commonly used in woodworking, metalworking, paint prep applications and finishing.
How many discs come in one case of this product?
There are four cartons per case, and each carton contains fifty hook-and-loop-style discs. This means you'll receive a total of two hundred individual discs per case.
How long does it take for these discs to wear out or become unusable?
The lifespan of our Hookit Blue Abrasive Discs varies depending on usage conditions. However, we designed them to be highly durable so that they can last longer than other similar abrasives in their class while still perform at a high level throughout the life of the disc.
Are these abrasive disks easy to use?
Yes! Our Hookit system makes switching between grits quick and simple - you don't even need any tools thanks to its handy design. Plus, with its anti-loading construction technology debris won’t clog up your sanding surface easily making your work more efficient.
Part of a 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 Features Enhance Performance and Disc Life
The multi-hole pattern on this disc is 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.The 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
3M™ Blue Abrasives family is designed as a cost-effective, high-performance upgrade for any sanding application in body repair and paint preparation. From its balanced, engineered mineral blend to its multi-hole pattern for dust extraction, the 3M™ Hookit™ Blue Abrasive Disc is another way that 3M applies science to deliver best-in-class performance for professionals in paint preparation and auto repair.