End mill having different axial rake angles and different radial rake angles

An end mill comprising:

• a cylindrical body having (a) a plurality of flutes each of which is formed in said cylindrical body and each of which extends from an axially distal end of said cylindrical body toward an axially proximal end of said cylindrical body, (b) a plurality of peripheral cutting edges each of which is provided by one of widthwise opposite edges of a corresponding one of said plurality of flutes, and (c) a plurality of end cutting edges each of which is located at said axially distal end of said cylindrical body and is contiguous to a corresponding one of said plurality of peripheral cutting edges,
• wherein said plurality of end cutting edges. include first and second end cutting edges, while said plurality of peripheral cutting edges include first and second peripheral cutting edges which are contiguous to said first and second end cutting edges, respectively,
• and wherein a first axial rake angle of said first end cutting edge is smaller than a second axial rake angle of said second end cutting edge, while a first radial rake angle of said first peripheral cutting edge is larger than a second radial rake angle of said second peripheral cutting edge.