Art. Most tack stores carry the rasp. Nicholson is a good brand. Diamond isn't quite as good. Good ones will run $20-$30. Countrysupply.com has some.
I picked up a dozen at an auction for $6.
Not exceptionally good ones, but now I have then stuck all over, wherever I might need one. You can pretty much tell the quality by just handling them.
The good ones are thin and balanced, and sharp , the poor ones are thick and don't feel right. The good ones, you don't want to drop on a cement floor. They break sometimes if hit just right.
