Replacing O2 sensors

[Ghostrider 310]

bala, I sprung for the Napa O2 sensor socket which is actually just a socket with a wire accommodation slot running parallel with said socket. I never used it sold the car but like you I found moving an O2 sensor tough if not impossible with an end wrench...

[Bala]

Unfortunately I have to install myself as they need to be wired with the old connector. I think the mechanic shops would take my arm and a leg. I have only one set left since buying this car!!

Question though: can I use the air impact wrench (only to unscrew)? Am I asking for trouble?