I am try to make some bolts on the HC and on my test parts (out of aluminum) I am getting way too much deflection. I expect that will carry over to the parts made from stainless steel. I'm guessing a box tool would help with turning the diameter to provide some support. Is there another way? What's happening is the diameter farthest away from the collet is greater than close to the collet. I used a geometric head to create the threads and they're ok where its fatter and flat topped where its thinner because of the deflection.
I will be using 7/16 hex 303 Stainless for the final parts. I'd guess it wont flex as much but would not produce "perfect" threads either.
Thanks
Bill