Tom, as mentioned I'm not going to bother re-hardening them.
1) because I don't wanna remove the scale/oxidation again.
2) I don't wanna induce distortion caused by heat treating a machined and stress altered part.
And
3) I don't need hard soft jaws
.
This is not going to be a commercially available product sporting guarantees of service for the next century. It's just a crummy old Cushman chuck that may allow me to experiment with the use of soft jaws on. If it works for me it'll outlive me.
1) because I don't wanna remove the scale/oxidation again.
2) I don't wanna induce distortion caused by heat treating a machined and stress altered part.
And
3) I don't need hard soft jaws
.This is not going to be a commercially available product sporting guarantees of service for the next century. It's just a crummy old Cushman chuck that may allow me to experiment with the use of soft jaws on. If it works for me it'll outlive me.
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.