| SKU | 7100363673 |
|---|---|
| Legacy SKU | 60450000975 |
| UPC | 00068060061515 |
| Catalog Number | 36502 |
| 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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What size is the 3M™ Hookit™ Blue Abrasive Disc 36502?
The disc is 5 inches (125 mm) in diameter, making it a great choice for many sanding jobs!
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How many discs come in a case?
Each case contains 4 cartons, and each carton has 50 discs — that’s a total of 200 discs per case!
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Does this abrasive disc have any holes?
No, this particular model does not have any holes. It’s designed as a solid disc for use with compatible hook-and-loop backing pads.
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What kind of surfaces can I sand with this Blue Abrasive Disc?
These discs are versatile! They’re excellent for sanding metal, paint, primer, and even plastic surfaces—perfect for automotive refinishing and lots of other uses.
The 3M Hookit Blue Abrasive Disc 521U is expertly engineered for use in collision repair applications, making it an ideal choice for sanding a variety of substrates such as paint, primer, metal, and composite materials. This versatile abrasive disc is designed to deliver consistent, high-quality results across multiple surfaces, ensuring a smooth and efficient sanding process in automotive refinishing and repair environments.
Constructed with a robust E-weight paper backing, the 521U disc offers exceptional durability and resistance to tearing, even during aggressive sanding tasks. Its fast-cutting abrasive grains are optimized to provide a superior cut rate, allowing technicians to remove material quickly while maintaining a uniform finish. This combination of strength and performance contributes to a longer disc life, reducing the need for frequent replacements and enhancing productivity in the workshop.
The innovative 3M Hookit system features a convenient hook-and-loop attachment mechanism, enabling users to easily attach, remove, and reattach the disc to compatible sanding tools. This reusable design not only streamlines the workflow but also helps minimize waste, making it a cost-effective and environmentally conscious solution for professional sanding needs.
- Designed for sanding paint, primer, metal, and composite surfaces in collision repair
- Durable E-weight paper backing ensures long-lasting performance and resistance to tearing
- Fast-cutting abrasive grains deliver efficient material removal and a consistent finish
- Hookit hook-and-loop attachment system allows for quick and easy disc changes
- Reusable design supports cost savings and reduced waste

