Our 4-in-1 mini straightedge spans three frets and "rocks" to indicate uneven fret heights. Precision-machined for accuracy to .0015" per foot, the 4", 3", 2" and 1-5/16" edges make it versatile for any fretted instrument, from basses to guitars to mandolins.
The Fret Rocker is made of 1/8" nickel-plated steel with a satin finish, for durability in professional use. It's an indispensable diagnostic tool, before and after partial refretting and recrowning jobs. It lets you do more accurate fret work for better playability.
Essential for fretting
is one of seven tools included in our Essential Fretting Tool Kit, a compilation of tools you'll need for the fundamentals of fret work. Kit also includes our book, Fretwork Step By Step by Erick Coleman with Dan Erlewine.