Review (5/5): Your search is over!
I had been searching for a callus remover that wasn't underpowered. This is exactly what I was looking for. Yes, it sounds like a jet engine when set for high. And yes, it can be dangerous if you don't take your time and be gentle and light handed.
Considering the cost of pedicures over time, and the fact that they can never quite remove all the dead skin from your heel, this pedicure dremel is worth the investment.