Milling cutter assembly

The present invention is a body having a home position; It is mounted to the home position, the cartridge having an insert; And in parallel formed on the body wherein the cutting oil ejecting unit, comprising a coolant injection unit configured to inject the coolant in two directions crossing each other with respect to the inserts, so as to inject the cutting fluid to the cutting edge and parallel to the direction of the insert Nozzle; And a cross jet opening formed in the body so as to inject the cutting fluid to the cutting edge and the cross-direction of the insert, the cartridge is formed so as to correspond to the cross-jetting ports, a guide passage for guiding the coolant to the cross-direction It provides a milling cutter assembly further comprises.