End mill

An end mill for metal cutting comprising a body, the body comprising:

• a front end, a rear end, and a central longitudinal axis extending from the front end to the rear end, wherein the body is configured rotatable in a direction of rotation around the central longitudinal axis;
• and
• a cutting section extending axially rearward from the front end, the cutting section including a plurality of radially protruding and axially extending teeth, wherein each tooth of the plurality of teeth includes a rake surface, a clearance surface, and a cutting edge located at an intersection of the rake surface with the clearance surface, each cutting edge of the plurality teeth including a front cutting edge, wherein the front cutting edge extends axially rearward and radially outward from an axially most forward point of the respective cutting edge, and, when the body is rotated, the cutting edge of each tooth forms a line of intersection in a central plane containing the central longitudinal axis, wherein each front cutting edge is interrupted by at least two chip splitting grooves such that the line of intersection of the front cutting edge with the interrupting chip splitting grooves includes
• at least three outer crests, each being located on an imaginary curve, wherein the imaginary curve extends in the central plane and is convex,
• at least two inner troughs, each being located between respective two axially closest crests of the at least three crests, and
• curve parts, each extending from one respective trough of the at least two troughs to one of the respective two axially closest crests, wherein each curve part includes a convexly curved outer portion, extending inward from the crest, and a radius of curvature that, in all positions, is larger than 0.1 mm.