One thing many/most forget is the 60 degree cutting tool should be aligned with the taper, not the axis of the lathe.
BTW, the only thing that crosses/interchanges between Imperial & Metric threads are the taper pipe threads. Learned this on a trip to Germany.
BTW, the only thing that crosses/interchanges between Imperial & Metric threads are the taper pipe threads. Learned this on a trip to Germany.