Stuck transmission drain plug

[JD Tim]

Hanson/Irwin tools makes a set of both internal and external screw/bolt extractors. I have used both on many occasions although some heat may be required. They will grab the outside of the plug or the inside where the square inset is.

[fruitcakesa]

I tried a screw extractor earlier in the process and all it did was tear up the metal wherever it grabbed and I got worried about either breaking it off in the hole or just making a mess.