Australia have the opportunity to press for a series-clinching victory after opening a 371-run lead on the fourth day against West Indies in Antigua.
Brett Lee claimed five wickets, including three in four balls, as West Indies were bowled out for 352 on the stroke of lunch, despite Shivnarine Chanderpaul's unbeaten 107.
That represented a first-innings advantage of 127 for Australia, who then batted throughout the remainder of the day to reach 244-6 in their second innings.
Phil Jaques shared an opening stand of 74 with Michael Hussey - opening in place of the injured Simon Katich - and 89 with Ricky Ponting for the second wicket either side of tea to build the tourists' position of total dominance.
Hussey was caught behind for 40 off Dwayne Bravo's bowling, while Jaques fell for a well-crafted 76, also edging to wicketkeeper Denesh Ramdin, this time off the bowling of Jerome Taylor.
Quick runs were the order of the day in the final session - Ricky Ponting and Michael Clarke perished in pursuit of that objective. Ponting was lbw for 38 attempting to work Taylor (2-33) into the leg-side, while Clarke (10) was run out shortly afterwards.
Andrew Symonds took up the mantle to reach the close unbeaten on 43 from 53 balls, adding 36 with Brad Haddin (7) and 22 with Lee (4) for the fifth and sixth wickets respectively.
Lee, who has dished out plenty of chin music at West Indies' tailenders during the series, was given a taste of his own medicine by Fidel Edwards (2-28), who hit him on the helmet with a bouncer and eventually had him caught behind in the last over, although it appeared to come off the forearm guard rather than the glove.
Shiv stands alone
At the start of the day West Indies resumed on 255-4 - Chanderpaul and Dwayne Bravo looked untroubled for the best part of the morning session while extending their fifth-wicket partnership to 132.
But a clatter of wickets began when Bravo was the first of Lee's victims, unluckily adjudged caught behind down the leg side for 45.
Lee was generating late reverse swing with the old ball and struck again with his next delivery, trapping Ramdin lbw, again the decision looked dubious with the ball hitting the wicketkeeper outside the line of off-stump.
Darren Sammy successfully negotiated the hat-trick ball and in the next over Chanderpaul brought up his 19th Test century - and fourth against Australia - with a clubbed blow through the leg side from Symonds.
But Sammy (0) was soon on his way when Lee was the beneficiary of another generous lbw decision, again the batsman looked to have been hit outside the line of off-stump in an effort to cover the late in-swing.
Lee followed up by deceiving Taylor with a slower ball after a quick-fire 20 and completed figures of 5-59 by trapping Daren Powell lbw for a duck. Mitchell Johnson (2-72) completed the innings when he had Edwards caught behind for the fourth duck of the innings.
The tourists lead the three-match series 1-0 having won the first Test in Jamaica by 95 runs.