Bolt tension calibrator - video

Bolt tension calibrator.

https://www.youtube.com/watch?v=p9pb2rrEjIg


Previously:

https://www.homemadetools.net/forum/...785#post152268
https://www.homemadetools.net/forum/...651#post118209
https://www.homemadetools.net/forum/...7894#post86435
https://www.homemadetools.net/forum/...911#post100290
https://www.homemadetools.net/forum/...379#post131384

I need some sort of explanation.
1) Not quite sure how to set it up: big washer? little washer? no washer!
2) Socket needs to fit bolt head
3) Fiddle with the air impact driver
4) Get out the torque wrench - dial moves some. What is it measuring?
5) Too much torque and the bolt breaks!

Where is the education or "wow"