| SKU | 7100378839 |
|---|---|
| Legacy SKU | 60450003938 |
| UPC | 00068060066466 |
| Catalog Number | 37455 |
| Product Number | 521U |
3M Hookit Blue Abrasive Sheet Roll 521U is a paper-backed abrasive sheet roll with excellent performance and cut. It is available in a range of grades. The convenient sheet roll format can be sized as required.
- 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
- Convenient sheet roll form available in a variety of grades
Product Dimensions |
Imperial | Metric |
| Weight | 2.2528 lbs | |
|---|---|---|
| Width | 6-1/4 in | |
| Length | 6-1/4 in | |
| Height | 4.6248 in |
Shipping Dimensions |
|
| Weight | 7.358 lb |
|---|---|
| Length | 16.25 in |
| Width | 6.8748 in |
| Height | 7.25 in |
| Color | Blue |
|---|
PRODUCT FAQ
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What materials can I use the 3M™ Hookit™ Blue Sheet Roll 37455 on?
Great question! The 3M™ Hookit™ Blue Sheet Roll 37455 is perfect for working on a variety of materials including paint, primer, metal, fiberglass, and composite surfaces. It’s commonly used in automotive repair, woodworking, and many industrial applications.
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How does the Hookit™ attachment system work?
The Hookit™ system is super easy to use! It features a hook-and-loop backing, a lot like Velcro, so you can quickly attach and remove the sandpaper from your sanding tool. This makes changing sheets fast and helps extend the life of your abrasives.
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What is the grit and size of this sheet roll?
This particular roll is 80E grit, which means it’s a coarse abrasive—great for material removal and shaping. The size of the roll is 4-1/2 inches wide by 8.7 yards long, so you get plenty of sanding surface to cut the sheets to the size you need!
The 3M Hookit Blue Abrasive Sheet Roll 521U is expertly engineered for professional sanding applications, particularly in the field of collision repair. This versatile abrasive is ideal for use on a variety of substrates, including painted surfaces, primers, metals, 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, this abrasive sheet roll delivers outstanding durability and a consistently high-quality cut. The E-weight backing not only enhances the product’s longevity but also provides the strength needed to withstand demanding sanding operations, ensuring that you achieve a smooth, even finish with every use.
The innovative 3M Hookit system features a convenient hook-and-loop attachment mechanism, allowing for quick and easy sheet changes. This reusable system helps reduce downtime and increases productivity by enabling users to attach, remove, and reattach the abrasive sheets as needed without compromising performance.
- Designed for sanding paint, primer, metal, and composite surfaces in collision repair
- Fast-cutting abrasive for efficient material removal
- Durable E-weight paper backing for extended product life
- Hookit hook-and-loop attachment system for easy, reusable application
- Consistent performance for both surface preparation and finishing

