What is Reddit's opinion of
"Pony Tools 6712 12inches, Heavy Duty Press Screw"
1 comment of this product found across Reddit:
$150 is a massive budget for this, tbh. You can do quite well with much less.
This screw is small, cheap, and would be good for a small shoulder vise.
You could also buy this kit and make a Moxon vise, which would be easier to build and could be stored separately from the bench when not in use.