I bought a pair of jaw extenders for my pipe clamps but found I needed three hands to keep them in place: The movable jaws kept swinging around whenever I tried to position them.

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I bought a pair of jaw extenders for my pipe clamps but found I needed three hands to keep them in place: The movable jaws kept swinging around whenever I tried to position them. So to keep them in place, I drilled and tapped a hole in the side of each sliding extender and threaded in a thumbscrew. Now I can set that extender at about the right spot and tighten the screw to hold it in place.
—Tom West, Greenfield Center, N.Y.