| SKU | 7100363534 |
|---|---|
| Legacy SKU | 60450001023 |
| UPC | 00068060061614 |
| Catalog Number | 36523 |
| 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 | 2.04 lbs | |
|---|---|---|
| Width | 6.1248 in | |
| Length | 6.1248 in | |
| Height | 3 in | |
| Diameter | 6 in | 150 mm |
| Center Hole Diameter | 0.0 NP |
Shipping Dimensions |
|
| Weight | 8.594 lb |
|---|---|
| Length | 13.8 in |
| Width | 6.9 in |
| Height | 7.3 in |
| Color | Blue |
|---|---|
| Maximum Speed | 12,000 rpm |
PRODUCT FAQ
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What type of surfaces can I use the 3M™ Hookit™ Blue Abrasive Disc 36523, 40E on?
You can use these discs on a variety of surfaces including metal, paint, primer, fiberglass, and plastic—they’re perfect for body shops and industrial applications!
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Does this disc work with my standard 6-inch sander?
Yes! These discs are designed to fit any standard 6-inch (150 mm) Hookit™ backup pad—just peel them off and stick them right on.
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Are there holes in this abrasive disc for dust extraction?
This particular model is "No Hole," so it doesn’t have dust extraction holes. We do offer other options if you need that feature—just let me know!
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How many discs do I get in one case?
Each carton contains 50 discs and there are 4 cartons per case—that’s a total of 200 high-performance sanding discs per case!
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 suitable for use on a variety of substrates, including paint, primer, metal, and composite materials. Its advanced design ensures efficient material removal and a consistently smooth finish, making it an excellent 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 long-lasting performance. The fast-cutting abrasive grains embedded in the disc allow for rapid sanding, helping to increase productivity and reduce labor time. This disc is designed to maintain its cutting power throughout its lifespan, ensuring reliable results from start to finish.
The innovative 3M Hookit system features a convenient hook-and-loop attachment mechanism, allowing for quick and easy disc changes. This reusable attachment system not only saves time but also helps to extend the life of the disc by enabling users to remove and reattach it as needed. The Hookit system is compatible with a wide range of 3M sanding tools, providing flexibility and ease of use in any workshop environment.
- Ideal for sanding paint, primer, metal, and composite surfaces
- Fast-cutting abrasive for efficient material removal
- Durable E-weight paper backing for extended disc life
- Hookit hook-and-loop attachment for quick, reusable application
- Compatible with a variety of 3M sanding tools

