I didn't know where to place this issue, so I put it here. I was trying to remove a stud from my turbo on the DP side and it broke. I drilled a hole in it, put a extractor in it, and broke the tip ofthe extractor off in the stud . I tried to drill through it with titanium and cobalt bits with no luck. Machine shop said get a new turbo but I'd run 4 bolts before doing something wasteful like that. I thought about chisels but I didn't see a cold chisel small enough and I didn't know if a wood chisel would be strong enough. I also read that if you torched it until it was glowing hot, it would be drillable after that but propane is all I have on hand and it isn't capable of such a task. Any ideas?