Licensed by Duesenberg - Can simply be swapped for a stop tailpiece. No drilling, no milling necessary. It's easily attached to the two threaded tailpiece bushings with the supplied screws. Classic flat lever version in a sleek and elegant göldo design! Incl. metric and US screws, matching hex keys and an 8mm open-end wrench for the tremolo arm nut. The distance between the tailpiece studs should be 81.5 mm, measured from center to center.