I had a steady stream of hot water flowing from my shower faucet. I removed the faucet handled to replace some parts. I broke the top part of the nut and now can't get it out. There is no thread inside to get it. A plumber told me to get an "alls out" tool to remove it but the hardware store never heard of such a tool. Am I pronouncing it right? Have you ever heard of such a tool? And, if not, what can I get to remove it.