I came across this post on Facebook, and this vise looks a lot like the Hardtail.
I mean, they all look the same, but different!
I don’t think anything resembles the Hardtail vise when the jaw is opened/extended, emphasizing its name!
Fun YT to watch!
https://youtu.be/7tTfL-DtpXk?si=U7NEsuiHb9B6RLvH