<p>Need to change the action of your favorite Martin? Our Allen Wrench will help you adjust your guitar’s neck to achieve the action you desire.</p>
<p>This truss rod wrench can be used on the following models:</p>
<ul>
<li>*DSS and OMSS Models</li>
<li>Modern Deluxe Series</li>
<li>SC-13E</li>
</ul>
<p><em>*For DSS-17 and all other models, please use the 5mm truss rod wrench.</em></p>