The Martin Truss Rod Wrench is made of premium materials for a professional quality instrument setup. Its ergonomic design guarantees correct truss rod adjustment on all your precious instruments.
Precision ball tip for easy adjustment
Ergonomic handle
Available in 4mm and 5mm
4 mm, item no. 18TOOL32
5 mm, item no. 18TOOL31
The 4mm Truss Shank Wrench can be used on the following models:
DSS and OMSS models
Modern luxury series
SC-13E
For other models, please use our 5mm Truss Rod Wrench.
