Review (4/5): Medium powered drill.
I actually purchased the nail drill/file in an attempt to drill out the corns on my boyfriend's foot. Kind of gross, I know. The drill will stop rotating if too much pressure is applied. I assume that is a safety feature so you don't drill your extremities off. I love the fact that it plugs in and can hold a charge for at least 30 minutes of continuous drilling. I also like how the files are metal and not a sand paper that would wear down quickly. I did try it on my nails as well and was very pleased. It does what I need it to do.
I received this product for free or at a discount in exchange for my honest and unbiased review.