1、Various shape, equaling flat, square, round, half round, elliptical, t-riangle and more. 2、Metal body, anti-skid rubber handle, polycrystalline diamond coated files, the files are effective on wood, bone, and soft metals such as brass, copper and aluminum, perfect for use. 3、Made of fine quality material, practical and quick polish. 4、For making guitar frets smooth without any damage. 5、A nice assistant tool for luthiers or guitar players. A handy and versatile fret file set for your guitar repairing needs. Widely used for guitar nut, bridge, saddles, pin holes, pickguard, fret and more. Features: Various shape, equaling flat, square, round, half round, elliptical, t-riangle and more. Metal body, anti-skid rubber handle, polycrystalline diamond coated files, the files are effective on wood, bone, and soft metals such as brass, copper and aluminum, perfect for use. Made of fine quality material, practical and quick polish. For making guitar frets smooth without any damage. A nice assistant tool for luthiers or guitar players. Specifications: Material: metal Length: 140mm / 5.5inch Handle dimension: 4mm / 0.15in Package size: 150 * 70 * 10mm / 5.9 * 2.8 * 0.4in Package weight: 90g / 3.2ounce Packing List: 10 * Guitar Frets Nuts File 10 * Guitar Frets Nuts File