Does any one know what size wrench I need to change the action on my SR500? Their website says 1.5mm, but it doesn't fit.
Ibanez hex wrenches are metric. Mine fits fine to my SR800, so either the truss rod slot is stripped or you are using an imperial hex wrench.
Just go out and buy a full set for both systems from your local tool store. Saves you a lot of hassle.