Very good quality push-pull potmeter made by Bourns. The potmeter has a wel working switching mechanism that will not brake quickly. The mounting hole needed is USA 3/8" (9.5mm), so this push-pull potmeter can replace any excisiting CTS or Bourns potmeter. When replacing Asian potmers, it might be possible the mounting hole needs to be drilled.
Because of the long bushing length this push-pull potmeter is suitable for mounting through a thick wooden top, like a Les Paul.