Wellington:New Zealand dismissed Bangladesh for 113 on Monday to win the second cricket Test by an innings and 137 runs and the two-test series 2-0 to improve its record to 6-0 in Tests against the tourists.
Seamers Chris Martin, Kyle Mills, Iain O'Brien and Jacob Oram each took two wickets as New Zealand took 25 overs, 110 minutes, to wrap up the innings on the third day and to post its fifth innings win over Bangladesh in six tests.
New Zealand's nine-wicket win in the first test in Dunedin marks the only occasion in which the margin of victory has been less than an innings.
Martin finished with match figures of seven for 99 and was man of the match as he stepped into the role of bowling spearhead, vacated by Shane Bond who will not play for New Zealand again after joining a rebel Indian cricket league.
Iain O'Brien also stepped comfortably into the role of third seamer, taking three for 34 in the first innings and two for 23 in the second, despite having to bowl into the teeth of a northerly gale.
Bangladesh was dismissed for 143 in its first innings Saturday and trailed by 250 runs when New Zealand replied with 393, Stephen Fleming making 87 and Daniel Vettori 94.
The tourists resumed their second innings at 51 for five on Monday, still 199 runs in deficit, and never looked like making New Zealand bat again.
Habibul Bashar was out for 25 in the first over of the day and New Zealand was able to seal its match and series victory, despite some resistance from the final pair - Shakib Al Hasan and Mashrafe Mortaza, who put on 30 runs in 40 minutes.
Bangladesh, which struggled in the windy conditions, was further handicapped by the loss of opening batsman Tamim Iqbal who did not bat in the second innings because of a broken thumb.
''I think in the end the win was pretty comprehensive so we're happy with that,'' said Daniel Vettori, who achieved his first series victory since replacing Fleming as New Zealand captain.
''We haven't played a lot of test cricket lately so it was good to put some runs on the board again. We did that, extended our lead well and took the game away from Bangladesh.''
New Zealand won the toss in both tests, sent Bangladesh in bowler-friendly conditions and dismissed them cheaply, for 137 in the first test and 143 in the second to set up the victories.
The 161-run opening partnership between Tamim and Zunaed Siddique in the first test marked the only occasion in the series when the Bangladesh batsmen dominated the New Zealand attack.
''We didn't bat well,'' said Bangladesh captain Mohammad Ashraful. ''It was very difficult to bat because the bowling side has dominated and bowled well.''
New Zealand next faces England in a home series comprising two Twenty20 internationals, five one-dayers and three Tests, at Hamilton, Wellington and Napier.
The first Test begins March 5. Bangladesh has only a few weeks to regroup before a series against South Africa.