Why is the saw on the right running cooler? Because RF85 technology reduces friction by 85%. This video, shot using an infra-red camera, shows higher temperatures in red and lower temperatures in blue. It is obvious by looking closely at the side by side videos that the saw blade treated with RF85 is running significantly cooler. In the video, which was made at Oak Ridge National Laboratories, the untreated sagittal saw blade operated 100 degrees hotter than the RF85 treated blade during testing. Heat is the big issue in the medical field, but in most other applications the reduced friction is the reason for less wear.