four in 1 Fret Bevel File: The Fret Bevel File have 4 angles, three Degree, 23 Degree, 35 Degree and 90 Degree, Specifically designed for remove fret sprouts and burrs. To avoid damaging the fingerboard with excessive force, Please put a layer of textured paper on the fretboard for protection before useInstructions for Use: The three Degree angle is used for beginning fret end beveling file, providing a slight bevel to the fret ends. After the beginning filing, the 23Degree angle is used for secondary fret end dressing. This steeper 35 Degree angle is used for further polishing the fret ends, providing a more rounded and smooth surface The 90Degree angle is used for smoothing and polishing the fret tops, ensuring they are level and evenLuthier Tools: The Guitar Fret File is an essential tool for guitar building, made of wood material. You can easily remove fret burrs and fret sproutsWidely Applicable: The Fret End Dressing File was developed to polish the Fret End. Works on Guitar, basseselectric pianos, ukuleles, ukuleles, banjos, and so on Quality Material: Crafted from wood, this guitar fret beveling file is built for long term use The quality materials ensure efficient fret end dressing and a smooth finish, making it an essential tool for any luthier Specification: Material: Wood Size Chart: 15.24cmx7.44cm/6.00inchx2.93inch Package Includes: 1 Fret End Beveling File1 Brush Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.