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No you can find nearly any size you want on Ebay

Cotton, Felt, even Foam.. You want the 1/2 inch - 1 inch wides to reduce the lines from Buffing this is another issue for small Dremel sized...

:)

I have 3 separate speeds


6 HF buffers at 3400
1 wheel at 1750
1 wheel at 1100

I have used the HF buffers since 2010 without a hiccup on 1000's of razors :)

Caswells has all the info right there in their Faq sheets

RPM is only a small part of the Equation,, the important part is what is called SFPM the polishing compounds have a recommended SFPM also...

Greaseless will not work on a Dremel very well, Dremels work with speed and have little if any Torque..