I have a tuner that the bushing threads inside the tuner must be crossed a bit so bushings won't thread in. If I can figure out how to disassembled the new version, old ones were easy, its not big deal and run a tap in to clean the threads up but they are differnt threads than any of my tap sets. Calipers measure it at about a very fine m8x 60-ish? Anyone know what the thread size is before I start buying wrong taps? P.s. I know I could contact Schaller & Dr. Brunning is always happy to replace parts for me but I hate the wasted cost of shipping 1 tuner all the way from Germany for a thread. I know @Ronkirn uses a bunch if these if he pops in.