Opened to take photos. Please see photos. 

From vendor's information: 

RobbJack 3/8" Diam, 1/2" LOC, 3 Flute Solid Carbide Ball End Mill Uncoated, Single End, 2-1/2" OAL, 3/8" Shank Diam, Spiral Flute  Manufacturer Part #: SB-301-12 HL  UPC: 662966227107