best way of getting rid of oxidation in tight spots

[Spark]

im currently sanding down my R19 alloys wheels for a refurb, there is absolutely no kurbing but lots of oxidation especially in the tighter areas. Can anyone tell me the best way to sand it down as its driving me insane.

 

[Tizer]

really small dremal sanding bits (if thats how its spelt)

 

[Renault_Boy01]

^^ as appove ( dremel drill)

 

[Spark]

yeh my dad just mentioned them to me

 

[Skinny]

what sand paper are you using to remove the bubbling and oxidisation on the alloys? I am about to start refurbing some in a few days and just geting some info.

Cheers