DIY Frequently Asked Questions / Chain Pipe Wrench')">
Offers easy handling in close quarters on round, square or irregular shapes without crushing the object.
Consists of a forged-steel handle attached to a length of heavy sprocket chain. The chain wraps around a length of pipe and engages the sprockets in notches on the back of the handle. Sharp teeth on the face of the handle bite into pipe while the chain holds the pipe against the teeth to prevent slipping.
Turns pipe in either direction and can be used like a ratchet wrench. The handle can be loosened, shifted and turned again without removing the chain from around the pipe.