Turnbull meets tradies in Geelong

If Malcolm Turnbull was hoping the infamous Liberal tradie advertisement had cut through to blue-collar workers, he may have more work to do.

Most tradesmen the prime minister visited at a Geelong precision manufacturer on Thursday either hadn't seen the ad or remain ambivalent.

Field worker Paul Ogilvie said the tradie in the commercial - lampooned as a fake and later revealed as the real deal - made 'sense'.

But he didn't buy it at first.

"To me it just made me think there's a bit of smokes and mirrors behind it," he told AAP.

"I worked with tradies and he didn't look like a real tradie the way it was set up."

Izet Vrbovac said he related to the tradie initially but then had second thoughts when a social media campaign attacked him as a fake.

"I thought he had a point at first."

Machine operator Carl Dixon wasn't fussed, saying he wouldn't be swayed by either the ad nor Mr Turnbull's visit to the Quickstep manufacturers facility.

"Pretty much everything political comes across to me as spin," he said.

Mr Turnbull used the visit to announce a $20 million jobs and investment package in the marginal Liberal-held seat of Corangamite.

It would provide business innovation grants and improve local infrastructure.

Red tape for Avalon airport would also be removed to open up new tourism and export opportunities.

But Mr Turnbull stressed the package wouldn't be realised unless the coalition was re-elected.

"The truth is Australians can do anything, but you need a clear economic plan," he said.