END MILL

An end mill (10) includes a plurality of peripheral cutting edges (20a, 20b, 20c; 30; 40) have respective helix angles (α1, α2, α3; β1, β2, β3) which are equal to each other and which range from 0° to 5°. Each of the plurality of peripheral cutting edges (20a, 20b, 20c; 30; 40) is defined by one of four types of teeth A-D consisting of (a) teeth A-C each defining a partially-uneven cutting edge (20a, 20b; A, B, C) that includes an uneven edge portion (Er) consisting of a nicked portion or a roughing portion, and (b) a tooth D that does not define the uneven edge portion (Er). The peripheral cutting edges (20a, 20b, 20c; 30; 40) are defined by at least two of the four types of teeth A-D, such that each adjacent pair of the peripheral cutting edges (20a, 20b, 20c; 30; 40) adjacent to each other are defined by the teeth that are different in type from each other.