- Fret problem solver: addresses common fret challenges such as uneven fret crowns and burrs; provides reliable acoustic guitar compatibility with accurate bass-curve adjustment. - Luthier essential: an indispensable tool for instrument builders for precise fret-wire processing; meets the needs of guitarists and bassists for improved tone quality and performance. - Optimal fret-wire refinement: effective deburring and oxidation removal through multi-face grinding; ensures long-term intonation stability and refines metal surfaces for even fret-wire play. - Reliability: gentle contact points and rigid construction support stable grinding with millimeter-precise accuracy, refined edge treatment and careful results. Applications - Use during fret installation or refrets to shape and finish fret wires for consistent intonation on electric, acoustic guitars and basses. - Use in maintenance to deburr fret edges and remove oxidation for smooth playability on metal frets. - Use as part of routine setup to prepare fret wires before crowning and polishing to ensure uniform playability and longevity.