It is a 1-inch diameter, 5-flute carbide tool with a Ti-Namite (TM) coating, designed for high-performance milling. Official & Scientific Archives
The WHO multimedia library lists a "38878.jpg" featuring Dr. Luiz Marino Bechelli , a former Chief of the Leprosy Section. 38878.jpg
It is used as a filename for promotional photography for the Person of Interest episode "Witness" (Season 1, Episode 7). It is a 1-inch diameter, 5-flute carbide tool