Simple Operation Metal Guitar Ukulele Fret Repair Tool Grinding Kit for MountingSpecifications:Definitely, this tool set has different specification file to match different neck adjustment nut for polishing and grinding, and it will help you to align the fret to improve the sound quality of your guitar in use. Designed with guitar file, guitar stone polishing, neck adjustment nut, these tools will make you freely individualize your own guitar and repair damaged and old parts of it. Making metallic material, this tool set is sturdy and rust-proof. This kit includes various tools of different sizes for you to choose freely. Suitable for repairing, fixing the surface of the guitar. Item Name: Guitar File SetMaterial: MetalFeatures: Solid, Universal, Improves SoundSize Details:Guitar File Head: 0.04cm-0.16cm/0.02"-0.06" (Approx.) Guitar Polishing Block: 10cm x 1.1cm x 1.1cm/3.94" x 0.43" x 0.43" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Included:1 x Guitar Polishing Stone1 x Guitar Is Your File2 x Guitar Nuts