| SKU | 7100363693 |
|---|---|
| Legacy SKU | 60450001072 |
| UPC | 00068060061713 |
| Catalog Number | 36550 |
| Product Number | 521U |
3M Stikit 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
- Stikit™ system for simple, secure application
- Available in a variety of sizes and grades.
Product Dimensions |
Imperial | Metric |
| Weight | 1.5719 lbs | |
|---|---|---|
| Width | 3.50394 in | |
| Length | 5.11811 in | |
| Height | 5.11811 in | |
| Diameter | 5 in | 125 mm |
| Center Hole Diameter | 0.0 NP |
Shipping Dimensions |
|
| Weight | 6.77392 lb |
|---|---|
| Length | 16.37795 in |
| Width | 5.86614 in |
| Height | 6.25984 in |
| Color | Blue |
|---|---|
| Maximum Speed | 12,000 rpm |
PRODUCT FAQ
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How many abrasive discs are in one case of the 3M™ Stikit™ Blue Abrasive Disc 36550?
Great question! Each case contains a total of 200 discs—there are 50 discs per carton, and 4 cartons in every case.
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What size are these blue abrasive discs?
These discs are each 5 inches, or about 125 millimeters, in diameter. They're a versatile choice for lots of sanding jobs!
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Do these sanding discs have any holes for dust extraction?
No, these particular Stikit™ Blue Abrasive Discs do not have any holes—they're designed as solid (no-hole) discs for consistent performance and easy attachment to your sander.
Experience superior sanding performance with the 3M™ Stikit™ Blue Abrasive Disc 521U, expertly engineered for use on a variety of collision repair substrates. This versatile abrasive disc is ideal for sanding surfaces such as paint, primer, metal, and composite materials, making it a reliable choice for automotive professionals seeking consistent results.
The 3M™ Stikit™ Blue Abrasive Disc 521U features a robust E-weight paper backing, which provides enhanced durability and resistance to tearing during aggressive sanding applications. This strong backing, combined with a fast-cutting abrasive, ensures efficient material removal and a longer disc life, reducing the need for frequent replacements and improving productivity in the workshop.
Designed for convenience, the Stikit™ system incorporates a pressure-sensitive adhesive coating on the back of each disc. This allows for quick and effortless attachment to sanding tools, as well as easy removal when it’s time to switch discs. The secure adhesive bond helps prevent slippage during use, ensuring a smooth and consistent sanding experience.
Key Features- Optimized for sanding paint, primer, metal, and composite surfaces in collision repair applications
- Durable E-weight paper backing for excellent tear resistance and extended disc life
- Fast-cutting abrasive for efficient material removal
- Stikit™ pressure-sensitive adhesive system for easy disc attachment and removal
- Consistent performance for professional-quality results

