Description: 3 in 1 Fret Bevel File: The Fret Bevel File have 3 angles, 3 , 23 , and 35 , 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: Choose the angle and tighten the two screw, First use a 3 angle for filing, fret budding, flush filing or tang removal, Then choose the 23 angle for secondary grinding. If you need a more angle, you can use the 35 angle for grindingLuthier 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 All Frets. Guitar, basseselectric pianos, ukuleles, ukuleles, banjos, and so on Save Money And Effort: Guitar are more expensive to repair at a repair store or to replace a guitar, This guitar crowning file helps you sand fret burrs, works efficiently and saves you money. After each use, clean up any stray chips with a brush, then wipe the file with oil or protectant to prevent rust and extend its life Specification: Material: Wood Size Chart: 6.5x3x1.5inch Package Includes: 13/23/35 Degree Fret End Beveling File Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.