So there you have it, New Zealand win their third Chappell-Hadlee series from four attempts.
Australia appeared to have restricted the Kiwis to a sub-par total of 9-281, which was highlighted by a Ross Taylor ton.
James Faulkner and Mitch Starc starred with the ball with three wickets each.
But despite half-centuries to Finch and Head, the Aussies relied too heavily on their lower order to get the job done - ultimately it proved too difficult for them.
Boult was scintillating with his first-ever ODI six-wicket haul.
Australia now shift their focus to world cricket's toughest challenge - India in India.