Mr.Power 5mm Ball End Allen Wrench For Guitar Truss Rod Adjustment
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<div style="text-align:left"><b>[Product Information]</b></br><ul><li><span class="a-list-item"> 
							For USA Martin and most acoustic guitar
							
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							Two way L-shape truss rod adjusment
							
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							5mm ball end
							
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							12.5cm x 7.5cm
							
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