I used it for oxygen sensor port but it was so badly crosse threaded was extremely challenging to get it right with the location of it. Drilled out a new hole and welded on a new receiver for the sensor.

Thanks I am servicing my 3rd gen camaro air cond and want to use the original evaporator, but someone boogered up the nut threads on it beford me - this may allow me to keep my orig non chinese evaporator on the car!

Looks like that's a very hood tool