This model allows users to mount products that use 140mm fan holes such as 140mm radiators, 140mm fans or distro plates to a case mount for 120mm fans. The opposing of this in the form of.

I'm modding a case, and useing 120mm fans that I need to cut holes for. I have none in hand right now, and was wondering if 4.5" is the correct cut out size for this fan?