Guitar String Action Ruler & Fret Protector Guards & Sanding Polish Luthier Tool
$ 24.27
1Best hardness and thickness, designed for string instruments users. 2Precision manufacturing, precision scale of the ruler, millimeter and inch double scale, convenient to use. 3This nice tool is useful for luthiers and DIY for many fret works. 4Protects from the fret file when we are filing the frets. 5Eliminate the need to mask off the entire fingerboard.