Photo courtesy of Ken and Roseanna  Johnson

Drain Plug Wrenches
A-120 and A-121. These were targeted to Fords, but became generic. They are used as a multiple size wrench for oil pans. The A-120 and A-121 both have 5 sizes, but the range is different. You can almost imagine seeing one of these is a 1950 oil changing station pit. One tool to find – fits everything