DZS ELEC 2pcs Martin Folk Guitar Allen Wrench Tool 4mm / 5mm Truss Rod Wrench for Martin Acoustic Guitar Truss Rod Adjustment
- Package includes: 1 x 4mm Truss Rod Wrench + 1 x 5mm Truss Rod Wrench.
- The product is made of metal, durable and highly wear-resistant.
- L-shaped truss rod, easy to insert into the sound hole and adjust the neck.
- L-shaped adjusting wrench can adjust the guitar neck straightness. It is suitable for all models of Martin Martin Martin and some brands of folk classical wooden guitars.