Leaky drain plug.

[alex11]

That smart-o is what i got to try and it didnt fit right at all. Now that i saw that tap kit i'm going to guess it has already been tapped since the hole was just tad bigger than the smart-o i got. I didnt buy the car new so i am not sure what all has been done to it by previous owner. i could just push the smart-o plug in half way before i had to actually turn it.
I have never seen drain hole repair kit, think it'd be possible to go next size up and re-tap it again? Or should i just get this size and see if i can correct the threads?