Crescent self-adjusting pipe wrench
Crescent Crescent self-adjusting pipe wrench
Crescent self-adjusting pipe wrench
Crescent Crescent self-adjusting pipe wrench

Crescent recently announced a new 12-inch Self-Adjusting Pipe Wrench (CPW12) designed for one-handed use. Unlike conventional pipe wrenches, which require you to turn a wheel to adjust the jaws, this wrench tightens against the pipe when you turn it one way and loosens when you turn it the other way. It works with common pipe from 5/8 to 1 1/2 inches in diameter, including black-iron, galvanized, PVC, and copper. According to the manufacturer, it can be used like a ratcheting tool to quickly tighten nuts, bolts, and couplings—though given the way the teeth dig in, you would not want to do this with anything other than rough hardware.

Lighter and narrower than conventional pipe wrenches of similar capacity, the Crescent is easier to carry and will fit places other wrenches will not. The tool is made from stack-laminated steel with a corrosion-resistant black-oxide coating. The handle is encased in a comfortable dual-material plastic grip.
 
Crescent CPW12
Size (L x W x H): 15.75” x 1.08” x 3.39”
Country of Origin: China
Street price: $20