A petrol saw was stolen from a van parked in Kettering at the weekend.
The petrol Stihl Saw TS410 - which retails at about £550 - was taken from the white Ford Transit in Bath Road.
The incident happened at some point between 12.30pm on Sunday, March 19, and 6am the following morning.
Officers would like to speak to anyone who may have witnessed this incident or who may have any information regarding it.
Witnesses or anyone with information can contact police on 101 or Crimestoppers anonymously on 0800 555111.