• Set of 6 electric guitar nut files with diamond coating. • Compatible with most materials. • String-shaped design for precise fit. • Hanging hole for workbench. • Laser-engraved size for easy identification. • Total length of each file: 12 cm. • Includes tool holder. • Instructions for use: identify the nut slot that needs adjustment, select the appropriate size for the string gauge, insert the file into the slot and secure it, apply light pressure and move back and forth, check the depth and width regularly, clean the instrument and the file after use, store in the aluminum case for protection. • Warning: these files cut very well.