single pointing 7/8-14 I.D. in 718

I have a job that includes single point threadingthe I.D. in 718 inconel heat treated to about 35-40 Rockwell-suggestions for starting sfm??

20-40?

Thanks, I was thinking around 30. Good to know on the right track

It pains me to think of how long that's going to take, hah.

For 1" thread length at 30 SFM is 131 RPM and about 217 seconds for 10 passes.