Be careful with "brass" wire wheels - they 99% of the time are merely brass coated steel. If it is a really stiff wire, you do NOT want it near chrome plated parts etc. I hate to say it, but I do see wire wheel paint enamel removal near the focuser flange
To properly restore soft parts and chrome/chrome plated/nickel plated, use a Dremel mini soft stainless wheel or a jeweller's brass wire wheel - which is genuine brass and is so soft you can literally put your fingers against it while spinning and it won't hurt.
I've been using a jeweller's brass wheel for decades for many restoration projects. It takes longer, but it's worth it. It will barely even scratch gold (what it's designed to not do)
Below is the wheel - this one is about 3 years of use. I buy them online from a jewellers supply in either Brisbane or Perth.