A "new" Bonney tool.
I've had this 3/8" extension for awhile. It was pitted and rusty, 16" long, never used it. Finally decided to clean it up and see if any shine was left (nada). So I sanded it smooth and painted it high temp silver. Then I noticed a detent ball in the female drive end, and realized it would take a crossbar. Found a suitable piece of steel rod in my scrap box, fit it in and put some rubber caps on the ends to keep it form sliding all the way out. I think it'll make a decent long reach T-driver. (If the paint isn't durable enough I might try a DIY nickel plating idea I saw on Utube).
Perfect of those hard to reach areas where low torque is desirable. With a magnetic socket on the end it might make a nice bolt starter.