I change coolant flush yesterday and today it was still leaking so I tighten the the top fell off the h..k! any one have the same problem now how do I care fully get this sucker out without damaging my beautiful radiator??

We just had the same problem while doing a motor swap at my house. Take the radiator out (drain it first!), turn it upside down, and drill out the plug. I think a new one is only a few bucks. I guess it doesn't take much to twist one of these into breaking :-(

Tom

oh well I used a reverse screw and my the radiator was so slippery there was no grip and my bit got stuck well I left it there the leak stop whee