hi guys, new to the forum and just wondering if anyone could give me any advice.. title is the issue. ive tried an erwin socket (erwin?.. irwin? whatever it is) with absolutely no luck. the things so far gone theres nothing to bite on becuase all thats left is practically a semi-circle.
i dont want to risk a hammer and chisel for fear of damaging my alloys unless there is absolutely no other option, any ideas would be great thankyou!

p.s dont ask why there is two locking nuts on each wheel.. previous owner.

i just want a set of four standards on after this episode.

(i know my alloys need a refurb, they were bought like this so no bad driver comments please.)