Surveillance video of the robbery shows a man in a white hoodie and a blacked-out face standing at the counter of a Huntly dairy.
Armed with a crowbar, he entered the superette in Hakanoa St, confronted the lone storekeeper and made off with the till.
The aggravated robbery happened on Wednesday, September 4, about 4pm.
Police are hoping that a photo of the offender, released today, will lead to the man being identified.
Constable Simon Evans, of the Ngaruawahia CIB, said he was hoping that someone would recognise the offender's grey/white hooded sweatshirt that had a distinctive black design on the front.
The man was wearing a bandana or scarf over his face and ran from the store with the till in hand.
Anyone with information on the identity of the offender is asked to contact Mr Evans on 07 858 6200.
Alternatively, information can be left anonymously with Crimestoppers on 0800 555 111.
- © Fairfax NZ News
Are you happy for the Chiefs to be called the Gallagher Chiefs from 2016