I generally carry nipple extractors in the following sizes: 3/8″, 1/2″, 3/4″ and 1″ diameters. Any size past that I’ll use my mini hack saw or even a fine (32 teeth per inch) hacksaw blade to make a couple of cuts, knock out a small piece of pipe and then remove the broken piece. The trick is not to cut into the fitting, which takes a little practice. Check out the video!
Nipple Extractors – Bobs Recommended Tools
The best nipple extractor I have found so far.
I discovered Walton nipple extractors through an ad in one of my trade magazines. Prior to Walton I used whatever I could get from my local supplier. These babies bite into the broken piece and cleanly remove it without damaging the fitting. When your ready to dive in, check them out!