Thank you Bill.
Don't worry. I can make a separate thread for this machining technique. I've been using this technique for over 40 years. If interested, I can post a few cases that I normally use, but I don't know anyone else. When I talk to experts, they think I'm crazy. I understand them, they haven't seen much in practice yet, but they have the certificate.
This case did not need further protection. The force of the jaws is large enough. I worked I was taking a small chip and carefully. But without fear.