| SKU | 7100363564 |
|---|---|
| Legacy SKU | 60450000959 |
| UPC | 00068060061478 |
| Catalog Number | 36500 |
| Product Number | 521U |
3M Hookit Blue Abrasive Disc 521U is a paper-backed abrasive disc with excellent performance and cut. It is available in a range of grades and sizes.
- Excellent cut rate and performance
- E-weight paper backing is highly durable and withstands wear, pressure and damage
- Easy and reusable hook-and-loop system
- Available in a variety of sizes and grades.
Product Dimensions |
Imperial | Metric |
| Weight | 1.41 lbs | |
|---|---|---|
| Width | 5.1248 in | |
| Length | 5.1248 in | |
| Height | 3.03071 in | |
| Diameter | 5 in | 125 mm |
| Center Hole Diameter | 0.0 NP |
Shipping Dimensions |
|
| Weight | 5.991 lb |
|---|---|
| Length | 13.8 in |
| Width | 5.9 in |
| Height | 6.3 in |
| Color | Blue |
|---|---|
| Maximum Speed | 12,000 rpm |
PRODUCT FAQ
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Is the 3M™ Hookit™ Blue Abrasive Disc 36500 compatible with my standard 5-inch sanding tool?
Yes, absolutely! The 3M™ Hookit™ Blue Abrasive Disc 36500 is designed to fit most standard 5-inch (125 mm) hook-and-loop sanding tools, making it super easy to use.
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Are these discs really dust-free when I’m sanding?
Great question! These discs feature a multi-hole pattern for optimal dust extraction. While no disc can be completely "dust-free," they do a fantastic job of minimizing dust when used with a vacuum sander or dust extraction system.
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How many discs will I get if I buy one full case?
You’ll receive a total of 200 discs in one full case—each carton contains 50 discs and there are four cartons in every case. That’s plenty to keep you going on your projects!
The 3M Hookit Blue Abrasive Disc 521U is expertly engineered for professional sanding applications, particularly in the automotive collision repair industry. This versatile abrasive disc is ideal for use on a variety of substrates, including paint, primer, metal, and composite materials. Its advanced design ensures efficient material removal, making it a reliable choice for both surface preparation and finishing tasks.
Constructed with a robust E-weight paper backing, the 521U disc delivers exceptional durability and maintains its cutting performance over extended use. The fast-cutting abrasive grains embedded in the disc allow for rapid and consistent sanding, helping to streamline your workflow and achieve high-quality results with less effort.
Featuring the innovative 3M Hookit attachment system, this disc offers a convenient hook-and-loop mechanism that enables quick and easy disc changes. The reusable design not only saves time but also enhances productivity by allowing you to switch between grits or replace worn discs with minimal downtime.
- Designed for sanding on paint, primer, metal, and composite surfaces
- Fast-cutting abrasive for efficient material removal
- Durable E-weight paper backing for long-lasting performance
- Hookit hook-and-loop attachment system for easy, reusable application
- Ideal for collision repair and automotive refinishing tasks

