[TR] ref: Type A Overdrive Notched Oil Plug

[Q]

I usually use a "C" wrench like this one on Amazon


https://www.amazon.com/Vmotor-Chrome-Vanadium-Spanner-Adjustable/dp/B076PD9FJT/ref=sr_1_2_sspa?s=hi&ie=UTF8&qid=1529956636&sr=1-2-spons&keywords=spanner+wrench&psc=1

I bought mine at Harbor freight but I just looked on their web site and 
I don't see them listed any more.  I expect you can get something 
similar from Graingers.

Edward Hamer
Petaluma CA