Would anyone know who still makes extractor tools for 10ga.or larger shotgun shells? They were mostly used by the British double barrel user.I am looking to buy one.

I'm don't know about the tool that you are asking about, but when I used so shoot skeet competitively, occasionally someone would have a shell stuck in the chamber. Many clubs would have a dowel or rod on the field for shooters to use to push out stuck shells. This worked, but it would delay the squad while someone found the rod and brought it to the shooter with the stuck shell.

I now carry a 3/8"x6-1/2" brass rod in my shell pouch. It's heavy enough to drop down the barrel to knock a stuck shell out, it won't damage the bore, and it's quick and always with me. I bought the piece of brass at our local steel sales and recycling yard.