I need to tap a fairly large number of holes with 5/8"-8 Acme threads. I figure it is worth my while to buy a tap instead of lathe cutting each and every threaded hole. Does anyone have a spare or surplus tap they would be willing to sell? Is there anything different or special when using the Acme tap I should know about before I start tapping the holes? Would procedures used for tapping regular threads be applicable? Appreciate any assistance. Thanks.
P.S. I'm looking for the 5/8"-8 Acme tap with the single thread.