Need to rigid tap 5/8-7 acme in 3/4 in thick steel, cant find a tool with small enough shank to thread mill so using a tandem tap. Tested in aluminum first and it didn't sound very good. Anyone know of an indexable tool with a major diameter of no more than .500? Anyone have any experience with rigid tapping acme threads?
Thanks in advance,
Cory
Thanks in advance,
Cory