This vice screw allows you to create an L-shaped shoulder vice commonly found on Scandinavian-style benches. The threaded section and adjustment knuckle is morticed into the vice shoulder with a pivotting jaw mount located on the ball-end. The benefit of this is it provides flexibility for the jaw to move when clamping out-of-square work pieces.
This particular should vice screw has a 28.6mm diameter screw and can clamp material up to 175mm thick less the thickness of the jaws. Overall length of the vice screw is 330mm and produce from cast-iron and bright steel.