What is a good Dremel head to use for detail sanding?

Dremel does make sanding drums with different grits. the most common ones are 60 and 120 which are pretty abrasive but Dremel does offer sanding drums in a 240 grit which is what I would suggest using on action figures. you definitely want to be very careful when sanding figures with your Dremel as they can be pretty destructive. the sanding drums will remove a lot of material very fast.

the Dremel grinding bits are great for using to clear material out of rub spots. they're faster than doing it by hand with sand paper but not as fast / destructive as the sanding drums so you can be a bit more precise. but you need to follow up with by going over the area you were sanding with some higher grit sand paper to smooth the area out.

my favorite thing to use for sanding is a 3M sand paper I found at a Hobby Town. it's 320 grit and then there is a 600 grit. the 320 works fantastic on plastic. it doesn't take much force to remove material and doesn't leave big, nasty scars.

I didn't know they made sanding bits for the dremel, only grinding bits? I use what looks like sandpaper wrapped around a little drum, but there's no way I could sand with it, it just destroys :P

Buffing is probably those white fluffy bits.