What polisher do you all use?

[Silverfish]

That is an eccentric surface sander and the complete wrong machine for a metal polishing purpose.

Yep
Looks like this is the one

Look suitable?

 

[wadsy]

DA

 

[MattiThundrrr]

This sponge flap ball chucks into a drill directly, or on the extension bar. It's easy to fit into small spaces, like behind the bridges on the stays