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.
Allen key won t fit in truss rod.
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.
But if your guitar has the original truss rod some squiers take a 3 16 allen key.
It fits well on the sides but won t drop into the recess.
This tool is made for the job.
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.
Click to enlarge photos 133486 133487 the socket is too long for the cutout access to the truss rod adjustment nut.
That s about 4 75mm so metric keys aren t going to work.
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.
Now that i ve done a lot of homework i am ready to take on my first attempt at adjusting my truss rod but i ve run into this issue before i even get started.
I ve been sent 3 16 which is too small and 7 32 which is too big although i ordered them in metric.
The keys are always a few thousandths under the nominal wrench size.
Anyone know what size hex key fits a yamaha pacifica truss rod.
Finish or other gunk can get in there keeping the wrench from engaging.
The truss rod on my martin gpcpa5k needed some minor adjustment.
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.
It fits well into the truss rod end and enables easy.
Fender doesn t use any secret special sizes for their hex sockets.
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.
You can adjust the truss rod with a nut located at one end.
I ve now tried 6 or 7 allen wrenches but none will fit.
That s a silly rumor.
I ordered some to adjust mine but they won t fit.
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.