A method of milling a profile of a railway rail comprises: rotating a milling cutter including a plurality of face mounted cutting inserts mounted about a periphery thereof; milling a railway rail with cutting edges of the cutting inserts rotating in a predetermined plane corresponding to at least a portion of a desired rail profile while controlling the depth of cut of the cutting inserts; traversing the railway rail with the milling cutter while milling the railway rail; and controlling the speed of traverse of the milling cutter along the railway rail.

A milling tool has single sided and indexable milling inserts having a round basic shape. Each milling insert has a plurality of tangentially spaced-apart and alternately usable cutting edges, which individually fall archedly from a first end, situated closest to an upper reference plane, to a lowest point, from which it again rises toward a second end. A reinforcing chamfer surface included in the cutting edge is formed with an increasing width in a direction from the first end of the cutting edge toward the second end.

A two-flute ball end mill includes a cutting edge that is formed at an intersection ridge line between a groove wall surface of a gash groove and a flank surface; and the flank surface includes a first flank surface that forms a chisel edge and a second flank surface that extends from the first flank surface to a rear side in a rotation direction with a larger clearance angle. In a case where, as seen from a tip side in an axial direction, an intersection point between one cutting edge of two cutting edges and the chisel edge is defined as a first intersection point, and an intersection point between a flank surface boundary line between the first flank surface and the second flank surface of the other cutting edge of the cutting edges and the groove wall surface is defined as a second intersection point.