I can't tell from your pictures but I believe this vise has a lever at the rear that can be pushed down to draw the jaws tight. If they jaws do not tighten as much as you would like you should able be able to screw the leaver in to draw the jaws closer. I have used seven different fly vises for model making. Depending on how heavy the vice is constructed you can clamp a thin metal piece in the jaws to aid in filing detail. It is also a handy aid for rigging. This not a top of the line vise, probably around $25. But is looks fairly rugged.