This is when other crowning files can accidentally scrape the fret top, creating a buzzing low spot. StewMac Z-File Fret Crowning Files. A whole new idea for crowning frets. Two diamond edges speed the work, shaping both sides of the fret at once.
The Stew Mac #5082 Z-file Fret Crowning File is ideal for luthier's who require a versatile fret working tool for precise fret thinning, shaping, and crowning on their acoustic or classical guitar projects.
