| SKU | 7100090978 |
|---|---|
| Legacy SKU | UU004899645 |
| UPC | 00051131361614 |
| Catalog Number | 36161 |
| Product Number | 321U |
The 3M Hookit Blue Abrasive Disc 321U delivers best-in-class performance at every stage of paint prep and coatings removal. Premium aluminum oxide mineral abrasive is blended with ceramic grain for a full range of sanding applications. The multi-hole discs feature a specially-designed pattern that reduces loading, extends disc life and aligns with most backup pads. Hookit attachment makes disc changes easy.
- A best-in-class abrasive for a variety of applications
- Engineered ceramic mineral blend is balanced for maximum abrasive performance in its class
- Discs available in mutli-hole pattern for excellent dust extraction or in no-hole format
- Anti-loading coating prevents dust and debris from clogging the cutting surface
- Upgraded resins improve durability and finish
Product Dimensions |
Imperial | Metric |
| Weight | 0.6001 lbs | |
|---|---|---|
| Width | 5.11811 in | |
| Length | 5.11811 in | |
| Height | 2.51969 in | |
| Diameter | 5 in | 127 mm |
| Center Hole Diameter | 0.0 NP |
Shipping Dimensions |
|
| Weight | 2.69008 lb |
|---|---|
| Length | 11.29921 in |
| Width | 5.90551 in |
| Height | 6.29921 in |
| Color | Blue |
|---|
PRODUCT FAQ
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What is the size of the 3M™ Hookit™ Blue Abrasive Disc 321U Multi-hole, 36161?
The size of this disc is 5 inches.
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How many discs come in a carton and case of this abrasive disc?
There are 50 discs per carton and four cartons per case, for a total of 200 discs.
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What grit level is this abrasive disc?
This specific product has a grit level of 180.
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Is it easy to attach these hookit discs to my sander or grinder?
Absolutely. These discs have our unique hook-and-loop attachment system that makes switching between them quick and effortless.
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. Could you tell me more about the multi-hole design on these abrasives?
. Sure thing! The multi-hole design allows dust extraction during sanding while reducing clogging and increasing efficiency overall.
3M™ Hookit™ Blue Abrasive Discs 36161 are a cost-effective, high-performance upgrade for primer sanding jobs in collision repair and other industrial work.
The multi-hole pattern provides excellent dust extraction to help reduce loading and extend disc life. Additionally, the universal design aligns with most sanders and backup pads for durable, long-lasting use.
The Hookit™ attachment system allows for quick disc changes with its hook-and-loop feature. This feature makes disc attachment, removal, and re-attachment clean and easy.
The engineered ceramic mineral blend delivers strong abrasive performance in its class, and the anti-loading coating helps keep dust from gathering between the abrasive grains for a faster precision cut.
Overall, 3M™ Hookit™ Blue Abrasive Discs 36161 deliver best-in-class cut, life, and efficiency across your entire shop.

































