polishing cloths - different sets for different metals?

[eekoh]

I've got a set of micromesh polishing sheets after seeing them recommended on the forums and I'm quite pleased with the results from my first few efforts. I'm likely to be working with copper and silver projects, just wondering whether its usual to keep separate materials for each metal?
Same goes for any polishing tips on a dremel, though I haven't actually used that yet.

[Dennis]

Yes you can work copper into the surface of silver and vice versa, particularly if used dry. You will easily see when you have picked up metal, by the colour and take care not transfer it. Dennis.

[eekoh]

Thanks Dennis, would you recommend them best used wet or dry?

[Dennis]

Well i'm no oracle, but I hate mess, so I use them dry.
That said people do wash theirs to revive them. Dennis.