Aluminum Prop Dings

Hi All

I'm repainting my McCauley Aluminium prop and was wondering if anyone can
give me some guidance in regards to the little aluminums dings that occurred
on the back side of the tip on the prop. These are tiny dings the prop has
picked up over the years from sucking up debris while taxing. They vary
from tiny pin pricks to small scratches, maybe .015" at the deepest and
maybe about .05" inches long.

I'm not sure if I should try and dress these out with a sander (grinder)
because to get them all out, I'd be taking off some serious aluminum.

Any tips on sanding would be appreciated.

Thanks

Eugene