Found two more of champion machine choke tube wrenches. They are both the same design.
The handle is spring loaded and bends in the middle. Also the handle can be used as a quick gauge for choke diameter but not really useful. IT CAN BE USED to straighten the choke if it gets a small ding in it. Just slide the tube over the handle and lightly tape it straight.
The fellow that made these passed away several years ago and these just turned up. One handle looks like it would fit 20 and 12 gauge for checking but they are both for 12 gauge tubes
30 dollars each plus postage