Sort of. The side with the single leg can be moved in and out but the others are stationary. So there is some adjustment but more to level out the top. Hope that helps.
There is about a 4in flat surface. It's enough for me to place over 100lb logs on and the sit ok till I get it clamped. I've never had a problem with it moving once clamped.
I've only used it to hold logs for wood carving. Some upwards of 200lbs and it stays put even with all the turbulence of a chainsaw and grinder. As long as it's clamped somewhere in the middle you should be good. Hope this helps.
It will hold up to 37in solid. If you are needing larger like a sheet of plywood, there is a 48in model.
The model number is located on the top of the front jaw.
Only on edge.
Yes, I brought this as a Christmas gift for my mother and she loves it. She has used it just about everyday
There is a clamp extension that makes it capable of holding a 4ft.sheet.
.. the jaws are steel with plastic/rubber pads ..attached pads would melt ...could remove them I suppose ..believe a blacksmithing vise or a heavy machinist vise would work better for your intended use