The only problem with using a Dremel is the fact that the rpm's are very high. If you are not careful, you can draw the temper from the hook points. They will be sharp alright, but if drawn at all, you could jeopardize the integrity of the hook point's hardness.
If you are using a polishing pad, that might work better than actually stoning the points. JMO.
_________________________
"A voyage in search of knowledge need never abandon the spirit of adventure."