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I have a lehman mode 7 lathe 18" swing and 9&1/2" between centers. The machine is well worn but usable. The cross feed nut is worn pretty bad, the screw looks like maybe was replaced but not the nut. Is there any where that someone can get a 7/8"-5 threads per inch Acme tap? We are considering changing to 3/4"-10 screw and nut but would require some butchering of existing parts. Maybe someone out there who rebuilds machines would have something like this and could sell us a tapped piece of wear bronze with this thread in. Any suggestions would be greatly appreciated.
