Get a simple, purpose-built tool for dial-in setups with the Martin 5mm Truss Rod Wrench (18TOOL31), available at Irvine Art and Music. Designed for smooth, controlled truss rod adjustments, it’s a handy add-on for players and techs who want to keep neck relief in check as seasons and string gauges change.

This wrench features a precision ball-end tip for easier engagement and an ergonomic handle for comfortable micro-adjustments. Martin notes the 5mm version is the go-to option for most Martin guitars (with certain models using 4mm instead).

Product Features

• Martin 5mm Truss Rod Wrench (18TOOL31)
• 5mm size designed for truss rod adjustments on most Martin guitars
• Precision ball-end tip for easier fit and engagement
• Ergonomic handle for controlled, comfortable adjustments
• Available as part of Martin’s 4mm/5mm truss wrench lineup