Crescent recently announced a new 12-inch pipe wrench designed for one-handed use. Unlike conventional pipe wrenches, which require you to turn a wheel to adjust the jaws, the Self-Adjusting Pipe Wrench (CPW12) tightens against the pipe when you turn it one way and loosens when you turn it the other. It works with common pipe from 5/8 inch to 1 1/2 inches in diameter, including black-iron, galvanized, PVC, and copper. …

This article originally appeared in Tools of the Trade. Click here to read the original version.