A new and improved version of the original Quick-Grip — one of Irwin’s best-selling clamps! Since not every workpiece has perfectly even edges, the SL300 adds a swivel jaw that conforms to angled surfaces and combats the inevitable flexing that occurs with resin clamps. It also features a spring-loaded, quick-change screw that makes it easy to reverse the smaller end-piece and transform the clamp to its other function — a high-performance spreader. The screw also eliminates rattle in the end jaw. A heavy-duty I-Beam Bar allows you to apply 300 lbs. of clamping pressure with minimal bending and flexing. All these improvements come without any added weight, so the clamp retains its chief benefit: simple one-handed operation.