3 Kinds of guitar repair tool:
The guitar straight edge, fret leveling tool and the guitar string ruler help you to measure if the surface of the fingerboard is straight and check the final height after you've redressed or replaced them.
Sanding beams can be used for fret leveling, fretboard contouring, body sanding and leveling any sandable surface flat. Coordinate use with sandpaper(No inclue): Attach pressure sensitive adhesive sandpaper to the 1" wide sides of the beam. Attach 80 through 220-grits for radiusing and leveling the fingerboard, and 220 through 400-grits for leveling the frets.