Australia demolished New Zealand's bowling on Saturday to open up a 211-run lead with one first innings wicket in hand at the end of the third day in the first test.

Michael Clarke and Adam Gilchrist blasted centuries in a record sixth-wicket stand while fast bowler Glenn McGrath joined in the run spree, registering a career-first fifty in his 102nd test.

At the close, Australia were in complete control at 564 for nine with a beaming McGrath unbeaten on 54 and Jason Gillespie not out 43. The two tailenders had shared an unbroken last-wicket stand of 93.

Left-arm spinner Daniel Vettori and paceman Chris Martin were the pick of the New Zealand bowlers, capturing four wickets apiece, but were unable to stem the run flow as the Australians piled on 367 runs in the day after resuming on 197 for four.

Clarke top-scored with 141 on his home debut while Gilchrist smashed 126 to rack up his 12th test ton.

The pair added 216 for the sixth wicket after Damien Martyn departed before lunch for 70, caught by Craig McMillan at third man off a short ball from Martin.

Clarke, playing his fifth test but first on home soil, was 31 not out overnight but raced to his century off 148 balls in 206 minutes when he hooked Martin to the boundary from the last ball before lunch.

DEBUT TON

The 23-year-old batsman also recorded a ton on his debut in India last month and joined Harry Graham and Kepler Wessels as the only Australians to score hundreds in their first tests at home and away.

Gilchrist was in a typically aggressive mood, reaching his century in less than three hours off 130 deliveries as he and Clarke blasted the Kiwi bowlers to every part of the Gabba.

Clarke plundered 21 fours and a six while Gilchrist struck 13 fours and four sixes.

Their partnership ended with the total on 438 when Clarke danced down the pitch and was bowled by Vettori. Gilchrist went soon after, holing out to Scott Styris off Martin.

Australia had lost four wickets for just 33 runs when McGrath joined Gillespie at the crease for the start of a most unlikely partnership.

McGrath averages less than seven with the bat in tests and had passed 30 only once before while Gillespie averages 14 and has a highest score of 48 not out.

But the two lanky bowlers made a mockery of their modest statistics in an enthralling 93-run stand in 110 minutes, McGrath reaching his first half-century with successive boundaries off Vettori in the third last over of the day.

Scoreboard

New Zealand (1st innings): 353 (Jacob Oram 126 not out, Mathew Sinclair 69, Michael Kasprowicz 4-90, Shane Warne 4-97)

Australia (1st innings): (overnight 197-4)
J.Langer lbw Vettori 34
M.Hayden lbw Mills 8
R.Ponting c Astle b Martin 51
D.Martyn c McMillan b Martin 70
D.Lehmann c McCullum b Vettori 8
M.Clarke b Vettori 141
A.Gilchrist c Styris b Martin 126
S.Warne lbw Vettori 10
J.Gillespie not out 43
M.Kasprowicz c Mills b Martin 5
G.McGrath not out 54.

Extras: (b-1, lb-5, w-1, nb-7) 14.

Total: (for nine wickets, 147 overs) 564

Fall of wickets: 1-16, 2-85, 3-109, 4-128, 5-222, 6-438, 7-450, 8-464, 9-471.

Bowling: Martin 36-7-141-4 (nb-3), Mills 26-8-99-1, Styris 8-1-33-0, Oram 22-2-108-0 (w-1, nb-4), Vettori 50-9-154-4, McMillan 5-1-23-0.