Awesome Buy For An Awesome Price!
This thing is just awesome and for the price...worth every penny.  I get gel manicures and sometimes I want to change the color without having to pay 15$ just to get a new color.  So the trick is;  you use the shiny drill bit without anything over it to remove the nail polish.  This will leave groves on the gel nail bed.  Then you switch the drill bit to the one that holds the sanding paper attachment and smooth over the grooves.  I went slow and took my time and my nails look great!
Rating: 5 stars