Angle Plates

[old_toolmaker]

rossbotics,

When I was working for a living I used a lot of A-2 because we were always sending tool steel out for hardening. Now in my home shop I am too frugal to spend the money on outside heat treating so that is why I have gone to 4140 PH and O-1. I can easily harden the O-1 with a torch and oil quench. On an emergency basis, when I was still working, we used to heat treat A-2 with a torch and allow it to quench in still air. It also works.