Looks like a Peak Riser on the base, the jaws look weak and Just because its so costly doesnt mean a damn thing. I would wager that the Nut behind the vise can do much better on a good Medallion Vise or a Peak, I have both and a few others, I cannot stand it when a company over prices a product as if its better because of price. Besides you cant buy it from J Stoddard so to me, its crap.