Tools have been taken from a van in Brixworth on Tuesday.
The theft happened outside a property in Glass Slade between 3.20pm and 3.30pm, when the offenders removed two power tools from a van parked on the driveway.
Two men were seen approaching the van and they then drove off towards the centre of Brixworth in another vehicle driven by a third man.
One of the men is described as white, about 6ft and was wearing dark clothing. The second man was also white, about 5ft 8in, with an athletic build and black, medium-length hair. He was wearing a dark, short-sleeved top with a white collar. The driver is described as white, with a big build and wearing a red jumper.
Witnesses, or anyone with information, are asked to call Northamptonshire Police on 101. Alternatively, they can call Crimestoppers on 0800 555111.