use a series of shorter drills consecutively....IE, start with a 1" long drill and then one a bit longer.....drill from both ends.....best of luck meeting the first hole in the middle.....peck the hole with short pecks and use kerosene for a lube...…..use a lathe or drill press, it doesn't matter.
If you want to use a drill press mark the centre of the hole offset on each end....ACCURATELY...…...then set it in an angle block upright on the drill press table.
Ian..