Hi,
Got the knuckle stem for my Jvice.
Have the vise in a Stonfo base as easier to move than the tying table type base the Jvice comes with.
Not showing a specific use of the adjustment capability.....just giving an idea of possible uses.
https://vimeo.com/190485229
With many(not all) true rotary vises, you can't put the jaws in a 45 degree angle. This allows a great deal of flexibility.