Rotary cutting tool

An end mill rotary cutting tool comprising:

• a shaft having and outer surface and having a longitudinal axis, the shaft including a shank portion and cutting portion, at least one helical cooling passage formed in the shaft having a cooing hole in an axial distal end of the shaft;
• a plurality of helical flutes formed in the shaft in the cutting portion about the longitudinal axis;
• and
• a plurality of helical cutting edges formed at an interface with the outer surface and a respective helical flute about the longitudinal axis;
• and
• a plurality of end cutting edges located on the axial distal end of cutting portion of the shaft, the end cutting edges being contiguous with a corresponding one of the plurality of helical cutting edges, and forming a blend radius at the transition between the end cutting edges and the helical cutting edges, where at least two of the end cutting edges meet across axial distal end to form a gash web.