4mm Allen Truss Rod Wrench image number 0
4mm Allen Truss Rod Wrench image number 1
4mm Allen Truss Rod Wrench image number 1
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4mm Allen Truss Rod Wrench

$6.00
no. 18TOOL15
3.6 out of 5 Customer Rating

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.

This truss rod wrench can be used on the following models:

  • DSS and OMSS Models
  • Modern Deluxe Series

Other models, please use our 5mm truss rod wrench.

Please allow 3-5 business days for processing

4mm Allen Truss Rod Wrench