This dual action truss rod allows the neck to be adjusted 2 ways. Offering more versatility when working on the neck of the Guitar or Bass.
Our modern double action truss rods requires a minimal removal of wood from the neck to be installed, leaving more tone wood in the neck.
Guitar truss rod 6mm wide, 9mm deep, 400mm long
Bass truss rod 6mm wide, 9mm deep, 610mm long