Best cutting disc ?

[dubdoc]

My 4.5 inch angle grinder (Bosch) needs a cutting disc. I know these have a lot of variation in quality. Which is the best ?

 

[lilredex]

I use them all. Overall, Walter is the better quality one.

https://www.walter.com/en_CA

 

[Shed of tools]

I use the Canadian made Dewalt they are the best available locally but avoid the Chinese made they don’t last.

 

[Neoumlaut]

I'm a welder and we use a bunch of different brands, they're all fairly similar. The only ones to avoid are the super low end ones - harbor freight, the 'forney' brand ones, etc.

 

[quadrcr87]

Benchmark Abrasives

 

[strutaeng]

Buy from this place. They are way cheaper if you buy a dozen, even after shipping. Better quality too.

https://www.lehighvalleyabrasives.com/?gclid=EAIaIQobChMIvqv397Hf6wIV1YZbCh38lQMvEAAYASAAEgJuo_D_BwE

 

[dr_clyde]

I’m a big fan of Camel Grinding Wheels and Metabo Slicers.

 

[Dave455]

What are you cutting?

If it’s stone/brick/concrete there are several choices, but personally I don’t use anything other than diamond discs now. The best I’ve found are Marcrist, and I use the same discs on all building materials - brick, block, plaster, everything.

If it’s metal, then I think the type of disc, and even it’s grade, are more important than the maker (provided it’s one of the decent makers). I don’t use anything thicker than 1mm now (except on aluminium) and the old thick discs feel really primitive if I pick one up. I also find it’s worth getting discs suitable for cutting stainless. They cut stainless or mild, regular discs only cut mild.

I generally use Norton as I’ve found them consistent over the years and I trust them. I also like the way they clearly explain their grading (good, better, best). I’m currently running Norton Blue Fire Inox in my 4 1/2” Fein, which is pretty much a dedicated cut off tool, but even Norton”s cheaper “Neon” discs are o.k.

I’ve used Bosch and Makita discs too, and they’re also o.k. but I don’t reckon they cut like the Blue Fire’s. I flat out refuse to use crappy discs. It’s not just about cutting performance and disc life, but safety, and I don’t take chances with grinders.

I should add that I’m in the U.K. so the brands I may have available might be different to yours!

 

[bdbecker]

For cutting metal, we've had good luck with 3M Silver. Just stick to a major brand (3M, Walter, Noton, etc) and you should have pretty good luck.

 

[Southern83]

I’m a big fan of Camel Grinding Wheels and Metabo Slicers.

What he said. I prefer the type 27 CGW. It's a little thicker and tends to last longer.

 

[bob15]

Have had good luck with United Abrasives/Sait brand cutting discs

 

[spike99250]

I agree with the Saits. I do not like the Dewalts at all.

 

[mc4life27]

I use them all. The metal cutting diamond disk work well tool just they seem to bed louder. But I do like the diablo ones as well. But I use whatever I have on hand. When it comes to price you either pay for it in quality or quantity. The cheaper disk burn through rather quickly and the more expensive ones last longer. But remember to always let the disk and the tool do the work and try not to force it through the material.


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[BD1]

Walter gets my vote.


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[Noworries]

Camel and Norton.. The thin Camels cut mild steel fast and clean!! The warrior brand from harbor freight are not to bad and are WAAAAAY better than the dewalts which is odd considering the 14" cutoff wheels cut pretty well..

 

[FSrepair&fabrication]

Benchmark abrasive .045 wheels for stainless steel cut well and last pretty long. I buy them in boxes of 50

 

[xela456]

Millwright/fabricator here. A cutoff wheel is probably our most used cutting tool. For me it goes:
CGW (best all around disc I've found)
Sait (as good as cgw but pricier)
Metabo slicers (cut well but vanish before your eyes)
And anything from norton abrasives.

Oh and if you can avoid it, don't get the .040s get the .045. The little bit makes all the difference in stoutness of the disc.
The only one I know to avoid is the dewalts from home depot, they last forever because they don't cut anything.

All this being said I wouldn't use a 4-1/2 inch cutoff disc. Everything I use is 6 inch and by the time they get 4-1/2 inches they are worn out! To me a 4-1/2 in metabo would be good for a grinder not a cutoff. If you're doing serious cutting try a 6 inch.

 

[dnschmidt]

Pferd and Walter. All others are below these two.

 

[anndel]

Walter

 

[dubdoc]

Thanks guys. I checked locally and the name Walter seems to rise to the top so it looks like it will be my choice in the future.

 

[Alaniho]

Pferd and Walter. All others are below these two.

agreed, these are excellent

 

[Cryptic1911]

We've got a bunch of benchmark abrasives discs and they seem to work well

 

[Monte]

Rhodius
Dronco

 

[metlmunchr]

The only one I know to avoid is the dewalts from home depot, they last forever because they don't cut anything.

Interesting comment. Back in the mid 80s when small grinders were just becoming popular, you'd hear people all the time claiming Black & Decker made the best grinding discs because they'd last forever.

And they would. But with 5 minutes of use they'd be so slick you could rub your car down with one and never scratch the paint. After that, about all you were doing was making noise and wearing out the grinder.

Considering B&D and Dewalt are the same company, seems like someone hasn't learned in 35 years that preserving the disc ain't the primary purpose of grinding.