New Zealand paceman Trent Boult has reaffirmed his position as the world's best one day bowler.

Currently ranked number one in the ICC rankings, the Black Caps paceman's took a career best six for 33 in New Zealand's 24 run Chappell-Hadlee series win.

Boult says it's fantastic to be able to find some success, and to do it against a "quality side" - missing a few of its better players - was even better.

Australian captain Aaron Finch agreed that Boult is a world class bowler.

"You'd love to have one of them on your side every time," he said. "It's just a point of difference. Someone who can knock over new batters at any stage - that's a huge asset to have."

The Black Caps will now turn their attention to the touring South Africans, with the first match a Twenty20 next Friday.