That said, it is possible to remove a broken bolt from an engine. You may need access to some specialty mechanic's tools, though, like a tap and die set or some extractors. Fortunately ...

REMOVES STRIPPED, DAMAGED & BROKEN FASTENERS – Every ROCKETSOCKET ... With ROCKETSOCKET bolt extractors make sure that you’ll be able to continue working on even the most challenging projects.

Breaking a stud or a bolt is a pretty common shop catastrophe, but one for which a fair number of solutions exist. Drill it out, shoot in an extractor ... out with his broken bit, which he ...