New And Improved Irwin Quick-Grip Clamps

Though there’s no information on Irwin’s website yet, Rockler has started advertising Irwin’s new SL300 Quick-Grip clamps. The new swiveling-jaw design gives you an improved grip on surfaces that aren’t parallel and compensates for the flexing of the clamp itself.
The Quick-Grip now employs a spring-loaded, quick-change screw to hold the fixed jaw in place. The screw keeps the jaw from rattling and makes it easy to transform the clamp into a spreader. Like the other Quick-Grips, Irwin manufactures the SL300 with a lightweight and strong resin, but apparently they’ve beefed up the heat-treated, carbon-steel I-beam to provide 20% more clamping power.
You can get Irwin’s Quick-Grip SL300 clamps from Rockler in 6″, 12″, 18″, and 24″ versions for $23, $26, $29, and $35 respectively.
Quick-Grip SL300 [Rockler]
Quick-Grip [Irwin]
I have a hard time shelling out $26 for a clamp when Harbor Freight wants $4 for their product.
I got a few of these free, and they are pretty good but I just bought a pair of 16″ jorgenson clamps at sears and they are the bee’s knees
http://www.sears.com/shc/s/s_10153_12605_Tools_Hand+Tools%2C+Carpentry_Clamps#viewItems=21&pageNum=1&sortOption=ORIGINAL_SORT_ORDER&&filter=Brand|Jorgensen&lastFilter=Brand