Those measurements were tested against traditional adjustable pipe wrenches. "We saw up to a 40 percent reduction in muscle activity and a tremendous reduction in grip pressure, in comparison to a ...

When it comes to having the right tools for the job, no toolbox or tool corral is complete without a standard, straight, heavy-duty pipe wrench. A tool designed to grip and rotate cylindrical material ...

His first solution was a kind of tong that could better grip the pipe but still proved less than ideal. Using wood, he carved out a prototype wrench that had a slightly uneven, serrated surface.