2013/01/24 This video shows a flexible-type anode rod, a 6-point 1-1/16″ impact socket, an impact universal joint, and a corded electric impact wrench. (Many impact wrenches are pneumatic or battery-powered rather than having an electrical cord). I demonstrate how the universal joint works, and how to connect and remove the socket from it.
In the video I mentioned an “impact drive”, but actually meant to say “impact driver”. Electric impact drivers shouldn’t be confused with manual impact drivers, which are different in that they also apply a downward force, whereas the electric ones only apply a rotational force (if I correctly understood what I read on various websites).