The saying goes that "You can never have too many clamps." That's why you'll see collections like Lumberjock Canadian Woodtick's, below, decorating a woodworker's shop walls. Never knowing exactly what size clamp you'll need for any given project means you've really got to spend a lot to cover all the bases. Pipe clamps ameliorate the situation somewhat, but you've still got to buy the pipes—and carry them around if you need them for an on-site job.
Stanley Tools has thus introduced their new 2×4 clamp, designed for the tradesman on-the-go. The idea is that rather than needing to load the truck up with bar- and pipe-clamps, you bring only the 2×4 clamps to the jobsite; once there you grab something presumably in abundant supply—a 2×4, if you're putting up a house—and that becomes your "bar." Check it out:
The convenience of the portability cannot be denied, but I wonder how these things measure up during actual operation. I don't have much experience with clamps longer than 24”, but for those of you that do: How do you see these things working out? Do you think they'd be trickier than a pipe clamp to wield into place, requiring two people for the longer spans? What applications would you use or not use these things for?