What year is your guitar.
													
																	Martin guitar truss rod adjustment tool. 
									
	
		
	
																	Find the right truss rod wrench size needed in a database of over 75 guitar and bass brands including fender prs gibson martin ibanez taylor jackson takamine schecter yamaha breedlove and many more. 
																	Includes a 4 1 2 bent leg. 
																	Use the martin guitar allen truss rod wrench to adjust your guitar s neck to achieve the action you desire. 
																	4 9 out of 5 stars 89 8 99. 
															
													
									
	
		
	
																	That one sits right at the edge of the dovetail so it takes a 4 5 long wrench to reach it. 
																	The older 1 way rod is just past the 1 cross brace.