Lexair's Genius 5-axis vise features a unique design that maximizes clamp force at the top of the jaws by pulling them closed at the top with a collapsing lead screw, while holding the bottom of the jaws in place with an opposing force screw. The dual-screw, pull-to-close vise eliminates the tendency of traditional vise jaws to splay apart at the top, which requires machine operators to hammer a workpiece down against the stops as the jaws close and clamp force increases. Comes in two sizes, capable of holding parts up to 8", with maximum clamp force of 9,000 lbs.