Police are on the hunt for the female, who stole a DeWalt power tool circular saw from the Wickes store in Gazelle Close between 2-3pm on Sunday, May 25.
Police are appealing for witnesses and have released CCTV images, above, of a woman who they believe can help with their enquiries.
Investigating officer PC Tin Wong, from Loddon Valley police station, said: “We are keen to speak to the woman in the CCTV images as we believe she can help with our enquiries.
“If you know or recognise the woman, or have any information about this incident, I would urge you to call Thames Valley Police on 101.”
Anyone with information should contact police on 101 or call Crimestoppers anonymously on 0800 555111.