Referring back to Post #250 and subsequent Post #758.
The below addition for the 'Pinch Vise' makes it much more user friendly.
Here we are adding a rubber spacer to keep the jaws open while not compressed.
3/18" O.D. 'Surgical Rubber Tubing' is cut to a height of 1/8" (spacer).
The 1/8" rubber spacer is placed over the 6-32 set screw, i.e. between the two washers, see images below.
When the finger nut (top nylon standoff) is loosened, the 1/8" rubber spacer opens our vise.
This pinch vise can still accommodate a PCB thickness down to a 4 thou object.





