Music Nomad’s patent pending Nut Files feature a revolutionary diamond coating & round “string-shape” blade design resulting in smooth, precision cuts. They cut & polish slots at the same time & do not drift like common toothed files. The industrial, even diamond coating cuts & polishes all the most common nut materials such as nylon, bone, graphite & TUSQ. They even work amazing on saddles. We added an ergonomic handle for total comfort & control of your cut, or you can remove the blade from the handle as an alternative cutting option. With 16 sizes to choose from starting with .010” up to .130”, they work great for electric, acoustic & classical guitars & even 5 string basses. That’s Music Nomad quality – raising the bar in equipment care.