Thread: sanding rust with a dremel

Originally Posted by [email protected]

Hi,
can you tell where find that 400grit flap wheel, allI found is 320grit,
who make it?
thanks

Try Widgetsupply I think I've seen some there.

Hum, I'm looking for some too and didn't find any on the site you mentioned. Any other ideas? Home Depot only seems to have 60 and 150 grit wheels. I'd like some 220 at last and higher if possible.

-Matt

I got a 400 grit from widgetsupply. I tried it, and it left too many marks for me. I ended up going back to starting and finishing by hand.

Others have posted better luck with the 3M wheels for the dremel that come in a broader range of grits. I haven't tried them yet myself.

Someone who has should likely comment shortly... or at least cross post the url.

-Bob

Originally Posted by RobertFontaine

Others have posted better luck with the 3M wheels for the dremel that come in a broader range of grits. I haven't tried them yet myself.

Someone who has should likely comment shortly... or at least cross post the url.

-Bob

I bought mine from Rio Grande, but if you google "bristle discs" you'll find other places that sell them.

Personally, I like them a lot. They leave a much more even sanding than a dremel will. It seemed to me though that most aggressive disc I had, their "220 grit", wasn't really that coarse compared to an equivalent dremel wheel.

Just be careful with them and they'll last quite a while. Don't let the disc run into the edge of the blade or it'll be shredded to ribbons. I was also holding my blade with a rag and the disc accidently got caught up in that. Instantly melted/ruined the bristle discs.

thanks a lot,
I must find the way to make them send it in france...bye

Originally Posted by RobertFontaine

Others have posted better luck with the 3M wheels for the dremel that come in a broader range of grits. I haven't tried them yet myself.
Someone who has should likely comment shortly... or at least cross post the url.
-Bob

Click here for a 2-page pdf summary of what's available. (Now you can Google on the 3M part number to find a supplier.) They go down to 6 and 1 micron. Anybody got a formula/chart that relates grit numbers to grit size in microns?

Originally Posted by fritz

Anybody got a formula/chart that relates grit numbers to grit size in microns?

I found this and this...

Not sure which is right

I have found a better (read safer) option for a Dremel are the polishing buffs. There are 3 different "grits" and are a tad more forgiving.

They won't last as long as other options and if there is bad pitting they may not be enough, but they seem to work well for most applications IMHO.

Mind you, this is for carbon steel and light work....

YMMV

v/r

Allen