Paul Toole launches Nationals' NSW election campaign, Antony Green outlines key seats

Deputy Premier Paul Toole says the election will be tight. (Supplied: Office of the Deputy Premier)

New South Wales Nationals leader Paul Toole admits the party is facing a tough battle at the state election next month, but insists its "work is not done".

Flanked by Premier Dominic Perrottet, Mr Toole made several funding promises to help rev up the party faithful at a campaign launch in Taree on Friday.