End mill

An end mill comprising:

• at a distal end portion side in a rotation axis direction of a tool body, a plurality of cutting edges continuous from a center side to an outer peripheral side in a radial direction when the distal end portion is viewed from a distal end face side in the rotation axis direction, the plurality of cutting edges being adjacently arranged in a rotation direction of the tool body;
• a gash formed on a front side in a rotation direction of each of the cutting edges;
• and a chip discharge flute continuous from the gash to a rear side in the rotation axis direction, wherein
• the gash includes a distal end side depressed face formed along a distal end side axis P1 making an acute angle with a rotation axis O and from the end cutting edges or from the rear side in the rotation direction of cutting edge flank when the distal end side axis P1 is viewed such that it intersects with the rotation axis O and passes through deepest positions on the surfaces of the gash, and a rear side depressed face adjacent to the rear side in the rotation axis direction of the distal end side depressed face and formed along a rear side axis making a smaller acute angle with the rotation axis than the distal end side axis and to the chip discharge flute when the distal end side axis P1 is viewed such that it intersects with the rotation axis O and passes through deepest positions on the surfaces of the gash, and
• the distal end side depressed face and the rear side depressed face have a depressed curved surface and have shapes overlapping with one another and form curved surfaces having an identical shape.