Had to pick between a $40 pipe wrench and a $15 adjustable for a stubborn sink fitting.
The fitting was stuck hard after years of rust, and I went with the pipe wrench thinking it had more grip. It worked, but left some marks on the chrome, which was a bummer. Would a different tool have saved the finish, or was that just the price of getting it loose?
My old foreman used to say a pipe wrench is just a persuasion tool with teeth. He had one where the jaws were worn smooth from convincing so many fittings to move. The goal is off, not pretty.
Hell yeah, aaron708 is right. A few marks is a total victory. I had a shutoff valve so frozen I thought I'd need a torch. My pipe wrench chewed the hex flat, but that fitting came off. Sometimes the right tool for the job is the one that wrecks it a little to get it done. Chrome can be replaced, but a broken fitting stays stuck forever.