I'm also a fan of Iwasaki rasps. They are excellent rasps and very reasonably priced. They may or may not be quite as good as some of the big dollar rasps, but they get the job done very nicely and are more affordable. I think the grading of the coarseness is a little off however. I'd say they are more aggressive than rated. You probably won't need anything other than extra fine, fine, and medium unless you really want to hog off some wood in a hurry. Also, as sdilts said, they work best with very little pressure applied.
Mole Eyes