We have a HBM that I decided needs a 90 degree head on it. The problem is it's a CT45, after months of looking for one I settled on a BT45 unit. There is no ATC so no issue with the flange. It did however pose a problem precuring a pull stud for it. I did some research on materials used for them and decided to use 8620. I combined the features needed for the stud end into the machine with the features needed to thread into the BT unit and whipped some up on the turning center. I know they get hardened but I can't find where anyone says to what.
Thanks
Thanks