plumbing tool name that removes nipples?

what is the name of the tool that comes in a box with different sockets to remove clean out caps and has an adjustable wrench to remove nipples ??? (mc manis wrench, mcmannest wrench something like that)

Public Comments

1. plumbing bob
2. There are 2 types: 1 looks look like a left-hand spiral screw extractor, the other has a 'cam' on the end...believe it or not, I did a websearch by typing 'plumbing nipple removal tool' and got pages of hits, but the 2nd or 3rd one listed on the 1st page was <<www.PlumbingSupply.com>> and then clicked on the 'nipple/screw extractor' line...there you will see pictures, sizes and prices for both types. Whatever you do, be as gentle as you can be, especially with copper pipe so as not to deform or twist what the nipple is connected to,.
3. I always heard it referred to as a "nipple popper", but that may just be local slang.