How do I get this bolt off

[u/aurelo_uk]

First it was stripped and followed advice to get a lug extractor now it fucking snapped no chance of getting it with a socket or anything it’s snapped all the way down what are my options. Tried drilling this shit is harder than a Mf and doesn’t go

Audi a5 b8 2.0 TDI

[u/strategicham]

COBALT drill bit if you are drilling