Andy Eagle
Fractal Fanatic
Nothing wrong withe fret erasers other that the cost because they don't last very long with me using them.A dremol makes sense especially if you're doing fret work on a more regular basis. I'm just a regular schlump who will only do this a few times ever so I just went with the Fret Erasers. They're basically just little blocks with varying grit like paper. Will give it a go