A finish end mill configured for rotating about a central rotation axis (A R) defining opposite axially forward and rearward directions (D F, D R), and opposite rotational preceding and succeeding directions (D P, D S), the preceding direction (D P) being the cutting direction, the end mill comprising: a shank portion; and a cutting portion extending forward from the shank portion to a cutting end face; the cutting portion comprising: an effective cutting length (L E); a diameter (D E); a plurality of integrally formed teeth; and a plurality of flutes alternating with the plurality of teeth, each flute having a helix angle and a flute depth; each tooth comprising: a rake surface; a relief surface succeeding the rake surface and having a relief surface width measurable in a plane perpendicular to the rotation axis (A R); a cutting edge formed at an intersection of the rake and relief surfaces (28,30); a relief edge spaced apart from the cutting edge and formed at an intersection of the relief surface and a flute surface of the flute succeeding the tooth; and a tooth area (A T) defined between a first radial line (L R1) extending from the cutting edge to the central rotation axis (A R) and a second radial line (L R2) extending from the central rotation axis (A R) to a nadir of the succeeding flute; characterized in that at an axial location in a front half of the effective cutting length: the flutes have an average helix angle value, with one or more flutes having a smallest helix angle value, and one or more flutes having a largest helix angle value; the teeth have an average radial rake angle value, with one or more teeth having a smallest radial rake angle value, and one or more teeth having a largest radial rake angle value; and at least one tooth has a radial rake angle smaller than the average radial rake angle value and the flute preceding each such tooth has a helix angle larger than the average helix angle value. the end mill comprising: a shank portion; and a cutting portion extending forward from the shank portion to a cutting end face; the cutting portion comprising: an effective cutting length (L E); a diameter (D E); a plurality of integrally formed teeth; and a plurality of flutes alternating with the plurality of teeth, each flute having a helix angle and a flute depth; each tooth comprising: a rake surface; a relief surface succeeding the rake surface and having a relief surface width measurable in a plane perpendicular to the rotation axis (A R); a cutting edge formed at an intersection of the rake and relief surfaces (28,30); a relief edge spaced apart from the cutting edge and formed at an intersection of the relief surface and a flute surface of the flute succeeding the tooth; and a tooth area (A T) defined between a first radial line (L R1) extending from the cutting edge to the central rotation axis (A R) and a second radial line (L R2) extending from the central rotation axis (A R) to a nadir of the succeeding flute; characterized in that at an axial location in a front half of the effective cutting length: the flutes have an average helix angle value, with one or more flutes having a smallest helix angle value, and one or more flutes having a largest helix angle value; the teeth have an average radial rake angle value, with one or more teeth having a smallest radial rake angle value, and one or more teeth having a largest radial rake angle value; and at least one tooth has a radial rake angle smaller than the average radial rake angle value and the flute preceding each such tooth has a helix angle larger than the average helix angle value. the flutes have an average helix angle value, with one or more flutes having a smallest helix angle value, and one or more flutes having a largest helix angle value; the teeth have an average radial rake angle value, with one or more teeth having a smallest radial rake angle value, and one or more teeth having a largest radial rake angle value; and at least one tooth has a radial rake angle smaller than the average radial rake angle value and the flute preceding each such tooth has a helix angle larger than the average helix angle value.