Well looks like I've made my first major cock up. After painting some of the parts on the lathe, I then set about reassembling them, this is where my mistake happened. I was reassembling the change gears, I'd got them all on their studs and I was just adjusting the fit between the gears, I tightened the nuts down that's when I heard that unforgettable sound of metal snapping. So now I have a threaded portion in my stud, how do I get it out?? I was thinking to drill it out and then retap will this work?