Music Nomad MN840 Precision Guitar Fret Gauge:
Gauge includes 4 key measurements for evaluating frets and diagnosing possible fret issues: fret level, fret seating, fret height, and fret size
Precision, smooth stainless steel without the annoying, messy oil found on traditional feeler gauge sets
Easy to follow instructions printed right on the handle, and includes a convenient hang hole
Laser etched sizes (in. & mm) & fret diagnostic type so they won't rub off
Works in tandem with MusicNomads Precision Fret Rocker+(sold separately) the perfect fret evaluation tool combo for all fretted instruments including acoustic guitars, electric guitars, bass, and more