I keep running into the need to cut 27 tpi and my lathe does not feed that. Over the years I run into 27 thread and in this case I lost the scope cover for an external adjusted MVA scope and wanted to make one. MVA can supply one but they are pricey and I can do it and would enjoy doing it but for the bastard 27 thread again. OK, OK - maybe not such an odd-ball in its day.
fraction thread - 3/4-27
Ideas for a work around?