MOPED ARMY

Ifou can have someone stand back and eye whether you are starting the larger hole at an angle that helps. The helping person would be telling you to raise or lower the drill. You would be monitoring the other axis alignment. If you use a drill press you could fix the carb in the vise by putting a 12 mm bit or thereabouts in it first just to line it up perfectly. 5/8ths is about15.5mm 9/16 is about 14mm