- Precise fretwire fitting: resolves common binding issues including uneven crowns and burrs; enables optimal fit for acoustic models through bass-curve alignment for improved playability - Luthier essential: indispensable tool for instrument builders for precise fretwire shaping and filing; meets needs of guitarists and bassists for enhanced tone and performance - Precise surface finishing: careful multi-face grinding ensures optimal playability, eliminates oxidation and promotes intonation stability while restoring metal shine - Robust construction: rugged design with gentle surface treatment allows stable grinding and millimeter-precise edge work during fret leveling; built to withstand regular workshop use Use cases - Use during initial fret installation on acoustic guitars to ensure smooth crowns and minimal binding - Use during fret leveling and dressing on guitars and basses to achieve precise edge work and consistent intonation - Use for routine maintenance to remove oxidation and restore the metal finish after work