Tech Talk
What are "Shell Mills"?
The shell mill is a milling cutter which fills the gap between solid one-piece end mills and the large-diameter face mills. Unlike the other standard one-piece tools described to this point, the shell mill is an assembly: the cutter is designed to be mounted on an arbor or adapter which serves as the driving shank. The method used to secure the shell mill on the arbor varies from tool manufacturer to tool manufacturer, but generally involves keying the components to provide positive driving action and prevent relative motion.
