Malcolm Turnbull and Bill Shorten are hitting key marginals in Sydney as the eight-week campaign draws to a close.
The prime minister has visited the Liberal-held western Sydney electorate of Reid - a long-time Labor seat the coalition snagged at the 2013 election.
Mr Turnbull was with wife Lucy and Defence Minister Marise Payne at Robotic Automation, a processing plant packing krill oil.
He said such technology can be exported around the world and that's why his government is pursuing its economic plan.
"Isn't that phenomenal," he said as he watched the machine build, pack and seal boxes full of tablet bottles.
After a string of radio and television interviews he used a visit to the plant in the marginal seat to talk up his favourite topic.
"I love innovation," he said, beaming to a wall of cameras.
Standing on a pallet on the warehouse floor surrounded by young Liberal faithful, Mr Turnbull stuck to his script.
"The truth is that we do live in the most exciting times in human history," he began.
Mr Turnbull again called for voters to back stability and stay clear of independents when they cast their ballots.
"Tomorrow I ask every Australian to treat their vote, for the house and for the Senate, as though they are the votes which determine the future of our government," he said.
Craig Laundy, who holds the seat with a 3.3 per cent margin, said the coalition needs to finish the last 24 hours of the campaign as strongly as it started.
"Why? Because this is the most important election that I've seen in my lifetime," he said.
"I'm a little bit older than you guys but I reckon it's going to be the most important in yours too."
Mr Turnbull left after receiving a warm applause from supporters but refused to take questions from the travelling media.
Shorten calling for NDIS roll out
Opposition leader Bill Shorten, meanwhile, is on a marginal seat blitz.
He is zipping around Sydney's west and south, hoping to win over voters in the seats of Banks, Barton, Parramatta and Macarthur.
He visiting Northcott, a disability services provider, in the Labor marginal seat of Parramatta in western Sydney.
With wife Chloe and deputy Tanya Plibersek, he met youngsters making collages in an art room.
"I want to be prime minister of Australia but something I want as much if not even more is to see the national disability insurance scheme rolled out," Mr Shorten later told young people with autism in a training room.
Mr Shorten was parliamentary secretary for disabilities in the Rudd government and, with colleague Jenny Macklin, helped make the NDIS a reality.
Earlier he said the controversial Victorian firefighters' pay dispute has gone on too long but it doesn't excuse the prime minister using them as political pawns for his own benefit.
He also refused to mirror Malcolm Turnbull's promise to intervene if elected, telling Melbourne radio 3AW it's a state issue.
Mr Shorten refused to confirm reports he met in secret with United Firefighters Union secretary Peter Marshall earlier in the year.
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Neck and neck
Two new polls released 24 hours out from election day show the contest between the coalition and Labor is still tight, but Malcolm Turnbull is tipped to emerge the victor.
The Fairfax-Ipsos poll of 1377 voters taken at the beginning of this week, shows an even split on a two-party preferred basis.
However, when asked specifically which party would receive their second preference, voters gave Labor a 51-49 per cent lead.
Malcolm Turnbull remains the preferred choice for prime minister, leading Opposition Leader Bill Shorten 49 to 35 per cent.
The poll also shows 27 per cent of voters still intend to back the Greens or minor parties and independents.
It was a different story in the third Galaxy Research poll of the election campaign.
The poll in News Corp Australia newspapers on Friday has the coalition ahead of Labor 51-49 on a two-party preferred basis - the first time this poll has had the Turnbull team ahead.
Its survey of 1768 voters shows the swing against the government has been limited to 2.5 per cent.
Labor needs a swing of four per cent to have a chance of picking up the 21 seats it needs to win the election.
The coalition has increased its primary vote to 43 per cent, the highest it's been since Mr Turnbull took over the leadership last September.
But Labor's primary vote has stagnated at 36 per cent - the level it was at the start of the campaign.
"The Labor Party has improved on their disastrous performance in 2013 but the increase of almost three percentage points to 36 per cent is insufficient to pose a serious threat to the government," Galaxy CEO David Briggs told News Corp.
Unlike the Ipsos poll, the Galaxy shows no real increase in the number of people considering supporting minor parties.
Political commentator and former Abbott chief of staff, Peta Credlin, said she'd like the primary vote to be higher for the government, especially in the Senate.
"The government will have a difficult government to govern if the Senate doesn't come in better."
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