I noticed something about doing this with insert drills in a recent thread but I ain't too clear on it as I never tired it myself yet but, can you actually drill with a bit of an X offset to get a bigger hole (lathe operation) with Insert drills? I know you can rough bore with them a bit, but say you got a .750" nominal drill (korloy or sandvik) and want a .790" hole in one shot with it, without boring it out, could it? seems like it wouldn't have much room to offset before the center insert gets chipped if its not pretty well on center?