Abstract: A cutting insert includes a milling insert body defining a first part of a rake surface of the cutting insert and a core defining a second part of the rake surface. The milling insert body includes at least one trough for allowing coolant to pass therethrough. The core is attached to the milling insert body by inserting a projection into a central aperture of the milling insert body. The projection includes a locating feature to assist in properly positioning the core when inserted into the milling insert body. A coolant passage is formed when the core is inserted into the central aperture of the milling insert body. The milling insert body could be made from a relatively expensive material, while the core could be made from a relatively inexpensive material, thereby providing significant cost savings.