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⚡ Slice faster, last longer — the ultimate abrasive edge for pros.
The 3M Cubitron II File Belt 786F is a premium industrial abrasive belt featuring precision-shaped ceramic grains that deliver 30% faster cutting and double the lifespan of conventional abrasives. Designed for tough metalwork including deburring, blending, and spot weld removal, it ensures consistent, reliable performance in demanding workshop environments.
| ASIN | B00PB3OAJI |
| Best Sellers Rank | #164,763 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #170 in Sander Belts |
| Brand | 3M |
| Brand Name | 3M |
| Compatible Material | Metal |
| Customer Reviews | 4.5 out of 5 stars 44 Reviews |
| Global Trade Identification Number | 00051131334373, 50051131334378 |
| Grit Material | Ceramic/Aluminum Oxide Blend |
| Grit Material Type | Ceramic/Aluminum Oxide Blend |
| Grit Number | 36 |
| Grit Type | 36+ Grit |
| Included Components | 10 belts per carton |
| Item Diameter | 0.38 inches |
| Item Dimensions | 1.38 x 2.63 x 5.5 inches |
| Item Highlight | 10 File Belts, Resin Bonded, Spot Weld Removal |
| Item Type Name | File Belt |
| Item Weight | 3.2 ounces |
| Item dimensions L x W x H | 1.38 x 2.63 x 5.5 inches |
| Manufacturer | 3M |
| Material | Zirconia Alumina |
| Material Type | Zirconia Alumina |
| Model | 33437 |
| Number of Items | 10 |
| Part Number | 33437 |
| Set Name | Pack of 10 |
| UPC | 051131334373 |
| Unit Count | 1 Count |
| Warranty Description | Call vendor for warranty |
R**R
These wear out fast.
I want to start by saying that I am new to choosing sandpaper for different tasks. I bought this for work to clean weld spots in tough spots. I have the milwaukee m12 adjustable belt sander and these fit perfectly. However they wear out incredibly fast. This could be due to my inexperience, or the product so I still gave it 5 stars. This belt and sander combo will chew through metal at a cost.the bright color of the belt does make it nice and easy to see through the sparks flying to the ceiling.
J**M
long lasting and durable
good quality product
F**S
Sanding belt
Cut fast. Wore down fast than expect. Still a decent product.
D**J
There is no better
Over the past few years I find myself only using 3M Cubitron abrasives. When I do the math it saves me money and time. Paying 1.5-2.5x the price for something that cuts better, faster, and lasts 10x as long is a no-brainer. I love Cubitron in every form.
E**A
Lasts FAR longer than the belts you'll get for cheaper.
Have to admit, I've given this belt a hot supper a few times, it's totally come back for seconds. Outlasts all the others I've tried and puts the cheap ones to shame. Totally worth it!
A**R
Honestly don’t see the hype
I have been comparing different band file belts restoring my 79 F-150. There is tons of rust I have welded patch panels and they honestly don’t last very long at all. I’d buy quantity over these. You’re paying for the 3M name
L**S
Let it eat
These are amazing for my belt sander. So far they're they best I've tired, with the Makita ones being second.
K**S
Thanks
Work well well made
M**C
Good quality
Autobody use
P**T
Good quality belts
After using many cheaper brand belts which turned to dust really quickly I tried these and they cut well and past a whole lot longer so worth the money.
S**D
Not as good as decription says
Don't last very long maybe 4-5 spot welds
C**Y
Garbage
I was nervous seeing cracks in the belts and sure enough the grit just couldn't hold on.. Ground down one small weld before it wouldn't cut anymore.. this $6 belt cut for all of 10 seconds before all the grit was dust in the air
Trustpilot
4 days ago
2 weeks ago