Electronic tuner clamp on or rack mounted digital tuner there is not a standard type or size wrench for all guitar truss rods.
Fender truss rod adjustment wrench.
A nut at one end of it often accessible at the headstock end of a guitar with an allen wrench although it s sometimes at the butt end of the neck allows it to be tightened or loosened as necessary.
There is an understanding that the phrase dual action truss rod is frequently used to refer to truss rod systems that actually use two rods.
1 8 hex allen truss rod adjustment wrench 12.
Vencetmat 9pcs guitar allen wrench set 1 5mm 2mm 2 5mm 3mm 4mm 5mm 1 20in 1 8in 3 16in fit for most acoustic electric guitar bass neck truss rod knobs bridge nut locking adjustment.
That said it s possible that this is something of a semantic gray area here as fender s bi flex truss rod can indeed be sensibly described as providing dual actions force in one direction and force in the opposite direction.
Save your screwdriver for more appropriate jobs.
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.
Fender bass truss rod adjustment wrench 4 8 out of 5 stars 90.
Overall length 10 3 4 27 31cm 3 8 blade width 9 52mm our veteran guitar technicians developed this high quality steel truss rod wrench.
Fender also offers a double action truss rod adjustment wheel on all american elite models that makes it a snap to address neck relief.
Small scewdriver if you need to remove a truss rod cover adjustment wrench that fits your guitar s truss rod nut.