Irwin Quick-Grip XP600 12 in. x 3.75 in. D Metal/Steel Bar Clamp 600 lb. 1 pc.

After searching for and trying about every clamp/spreader I could find, I finally settled on the 600 series. I'm using the initially for the spreader function to apply pressure against glued on floor molding where fasteners can't be used in the wall. Once I figured out how to switch the end jaw I saw that this clamp was the best for my needs and easier to use than any of the others. I will add these to my collection of about 20 other misc. conventional clamps and will likely be using them in the future for conventional clamping also. These heavy duty clamps may be overkill for most of my uses, but they are constructed well and I don't have any reservations about them holding up long term.