Face milling cutter

A face milling cutter with a shaft section having a longitudinal axis and a tool section axially mounted to the shaft section, the front end of the tool section having at least one flat, arched, lower cutting edge (24) having a radius, the lower cutting edge joining to a rounded corner cutting edge, and a peripheral straight cutting edge being provided at the periphery of the tool section, the lower cutting edge having a radius r1 of 1 to 2 times of d1 wherein d1 is the diameter of the flight circle of the axially parallel tangent to the rounded corner cutting edge, the beginning of said radius r1 being offset from said longitudinal axis 0.1 to 0.2 times d1, characterized in that the separation distance of the tangent point (34) of the tangent (30) from a second tangent (36) to the lower cutting edge (24) perpendicular to the shaft axis (28a) is between 0.08 and 0.12 d1;

• the center of the circular arc of the lower cutting edge (24) has a separation distance of a1 from 0.1 to 0.2 d1 from the shaft axis (28);
• and the radius r2 of the corner cutting edge (26) is 0.05 to 0.07 d1 and wherein the straight peripheral cutting edge (28) above the tangent point (34) recoils around a predetermined clearance angle a.