Deep-throated clamps come in handy when you need them but represent a healthy investment. And even the deepest of them sometimes don’t reach far enough.

Here's a far-reaching clamp you can make to any length, using scrapwood, common hardware, and a typical F-style clamp. Add cork to the tips of the wood arms to provide cushion. Once you have the long jaws positioned and before you fully tighten the F-style clamp, tighten the bolts to keep the long jaws from shifting.
—Dale Ferguson, Polson, Mont.