Truss rod wrench - long works for ALL Martin guitars
In 2006 Martin began installing a new 2-way adjustable truss rod in many models. This new rod sits deeper inside the neck and you will need this long truss rod wrench to reach it. This new longer wrench will work with both styles of truss rods, but the old wrench will only fit the old style truss rods. If you're unsure which wrench you need - you need this one.
Want to learn more about guitar truss rods? Read our Adjusting Your Truss Rod blog.