Cruz Tools GrooveTech soundhole truss rod wrench for acoustic guitars. Acoustic guitar truss rods need adjustment just like electrics, but manufacturers sure don't make it easy. Access is typically through the sound hole, sometimes through a brace to an unseen nuts. These wrenches allow quick access to nuts on most makes and models of acoustics, with a precision ball-end tip for easy fit, extra length on both segments of the blade, and an oversized handle for confidence when making adjustments. Professional-grade.
- Allows easy adjustment of truss rods without loosening strings
- Ball-end tip for easy fit
- Large handle provides confident grip