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. Various shape, equaling flat, square, round, half round, for triangle and more. Metal body, anti-skid rubber handle, polycrystalline coated files, the files are effective on wood-, bone, and soft metals such as brass, and aluminum, great for use. Designed to cut quickly and smoothly, full shaping, forming, carving, engraving and removal. metal