Drilling steels had a habit of breaking clean in two if "whipping" was involved, by that I mean using long drilling steels to start drilling a hole with, I had a near miss on more than one occasion as a drillers mate collaring holes for some drillers that insisted using 8 foot steels to start the hole to save on drill steel swopping time.....very bad practice, a jack legged 303 with a drilling steel stub with sharp edges heading full force towards your back isn't good.
Lozz.