Threading tool

[Piggiron]

I stumbled onto this video the other day. Thought I'd post the link.
https://youtu.be/rfW6yzHZoa4?is=AToA_WGp_L5MTNpC

[PJ]

Thats pretty cool!   I was skeptical from the looks of it at first but I hadn't noticed the tool is hard locked forward by the toggle mechanism. Initially, I thought it was just spring the pressure.  Spring is only to retract.  Are these one-offs made by the fellow in the email link?