| SKU | 7100363496 |
|---|---|
| Legacy SKU | 60450001049 |
| UPC | 00068060061676 |
| Catalog Number | 36530 |
| 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 | 3.915 lbs | |
|---|---|---|
| Width | 8.1248 in | |
| Length | 8.1248 in | |
| Height | 3 in | |
| Diameter | 8 in | 203 mm |
| Center Hole Diameter | 0.0 NP |
Shipping Dimensions |
|
| Weight | 16.181 lb |
|---|---|
| Length | 13.8 in |
| Width | 8.9 in |
| Height | 9.3 in |
| Color | Blue |
|---|---|
| Maximum Speed | 6,000 rpm |
PRODUCT FAQ
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What is the grit size of the 3M™ Hookit™ Blue Abrasive Disc 36530?
The 3M™ Hookit™ Blue Abrasive Disc 36530 has a coarse grade of 36E, which makes it ideal for heavy-duty sanding and blending.
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Does this disc have holes for dust extraction?
No, this particular disc does not have any holes—it’s designed as a no-hole version for specific applications.
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What kind of surfaces can I use these discs on?
These abrasive discs are great for metals, fiberglass, coatings like paint or primer, and rigid plastic surfaces—perfect for automotive bodywork and other tough jobs!
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How many discs do I get in one carton and in one full case?
Each carton contains 50 discs. When you order a full case, you'll receive four cartons—that's a total of 200 discs per case!
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What type of backing system does the disc use?
The disc uses the convenient Hookit™ hook-and-loop attachment system from 3M—making changing out discs fast and easy!
The 3M Hookit Blue Abrasive Disc 521U is expertly engineered for professional sanding applications, particularly in automotive collision repair. This versatile abrasive disc is suitable for use on a wide range of substrates, including painted surfaces, primers, metals, and composite materials. Its advanced design ensures efficient material removal, making it an ideal choice for both surface preparation and finishing tasks.
Constructed with a robust E-weight paper backing, the 3M Hookit Blue Abrasive Disc 521U delivers outstanding durability and consistent performance throughout its lifespan. The fast-cutting abrasive grains embedded in the disc allow for rapid sanding, helping technicians achieve smooth, even surfaces with less effort and time. This combination of strength and efficiency makes it a reliable solution for demanding repair environments.
The innovative 3M Hookit system features a convenient hook-and-loop attachment mechanism, enabling quick and secure disc changes. This reusable attachment system not only streamlines workflow but also extends the usability of each disc, as it can be easily removed and reapplied as needed. The result is improved productivity and reduced downtime in busy workshops.
- Designed for sanding paint, primer, metal, and composite substrates
- Fast-cutting abrasive for efficient material removal
- Durable E-weight paper backing for long-lasting performance
- Hookit hook-and-loop system for easy, reusable disc attachment
- Ideal for collision repair and automotive refinishing applications

