Poor man's nut files

You can make almost all of the guitar nut files you ever need in minutes, for peanuts Tip Cup

MusicNomad's patent pending Nut Files feature a revolutionary diamond coating & round “string-shape” blade design resulting in smooth, precision cuts

nuts and bolts slot It has 8 different measurements Files, all of them of high precision for cutting strings slots at Nut and Saddle, providing a very clean and precise cut

nut slot depth One substitute for a set of nut files, which I don't think has been mentioned, is a needle file With care, you can widen – and even cut slots –