But not for those that take a threaded hex bushing, correct? I have Revolutions and one went bad. Can't find a single tuner, WD owns the Kluson brand and they won't return phone calls and their email link is dead.. They used to sell them in singles. I don't want to buy a whole set to replace one tuner.. I'd just buy the Gotohs, but I don't think these will work... I don't think they make the type with the screw in hex head bushing, these are likely for the pressed in, SD90-MGT.