Jaw pocket holds parallel clamps upright
Mounting easily to the underside of your workbench, the jaw pocket should fit a clamp's jaw without wiggle room. With one jaw of the clamp held in place, you can adjust the other with one hand and steady the assembly with the other. And the benchtop serves as a clamping caul—expanding the clamp's pressure over a wider area.
—Gary Scoggins, Hayward, Calif.