Set up and maintain your instrument with precision using the PSM Guitar String Action Gauge Ruler. This compact luthier tool is designed for measuring string height, spacing, fingerboard width, and setup reference points for acoustic guitars, electric guitars, bass guitars, classical guitars, and ukuleles.
Featuring clearly marked calibrations on both sides, this pocket-sized ruler helps musicians and technicians achieve accurate string action and comfortable playability during setups, adjustments, and repairs. Lightweight and easy to carry, it is an essential addition to any guitar toolkit.
Ideal for checking 12th and 14th fret string action, nut spacing, and fingerboard measurements across a variety of instruments.
Features:
Compact and lightweight design
Dual-sided measuring functions
Suitable for guitar, bass, ukulele, and classical guitar
Measures string action, spacing, and fingerboard width
