Detail 01
4.75 in. arm with ball end
Provides extended reach for truss rod adjustment points in hard-to-reach locations.

Independent shopping perspective
Built for acoustic guitars that use a 4 mm truss rod nut, this Music Nomad wrench gives you a dedicated tool for setup adjustments. Its 4.75 in. arm and ball end are intended to reach adjustment points deep in a sound hole, while the ergonomic handle gives a controlled grip. Steel construction, black-nickel finish, and a laser-marked size make it a practical maintenance tool to keep with your guitar-care gear.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
Provides extended reach for truss rod adjustment points in hard-to-reach locations.
Detail 02
Lets you identify the wrench size quickly among setup tools.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
It is designed for acoustic guitars with 4 mm truss rod nuts, including named Martin DSS, OMSS, Modern Deluxe Series, and SC-13E models.
The arm measures 4.75 inches.