I ordered some to adjust mine but they won t fit.
Allen key won t fit in truss rod.
The truss rod on my martin gpcpa5k needed some minor adjustment.
That s about 4 75mm so metric keys aren t going to work.
You can adjust the truss rod with a nut located at one end.
Different manufacturers put them in different places but they re usually at the headstock under a cap just behind the nut or where the neck joins the body just under.
This tool is made for the job.
It fits well on the sides but won t drop into the recess.
Based on those numbers the standard strat bridge key is 1 5mm the truss rod key is 3 16 and the jazz bass bridge key is 1 16.
Fender doesn t use any secret special sizes for their hex sockets.
Tacklife hex key allen wrench set 26 pcs sae metric allen wrench set with long arm ball end 3 64 3 8 in 1 27 10mm heat treated chrome vanadium steel hhw3a 4 6 out of 5 stars 271 13 97 13.
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.
The hole in the truss rod nut is kinda shallow.
Not every truss rod uses an allen key for adjustment for example taylor guitars need a special phillips head screwdriver and a 1 4 nut driver.
The business end of the truss rod is recessed deep within the sound hole.
That s a silly rumor.
I ve been sent 3 16 which is too small and 7 32 which is too big although i ordered them in metric.
The neck of most guitars has what s known as a truss rod which is a one or two piece adjustable metal rod that goes down the inside of the center of the neck.
Anyone know what size hex key fits a yamaha pacifica truss rod.
Hey i got a fender mexican jazz bass somewhat recently and noticed it needed a truss rod adjustment but the allen wrench that came with it wouldn t fit.
But if your guitar has the original truss rod some squiers take a 3 16 allen key.
Right before you try the hot wrench trick find a flat blade screwdriver that s a bit smaller than 1 8 jam it in there and turn it a few times to dig the gunk out of the hole without chewing up the sides.
I ve now tried 6 or 7 allen wrenches but none will fit.
Finish or other gunk can get in there keeping the wrench from engaging.
The keys are always a few thousandths under the nominal wrench size.
I didn t want to risk damaging the hex head and or the guitar by trying to use adapt a standard profile hex key.
