Square End Mill: 7/16" Dia, 1" LOC, 4 Flute, Solid Carbide 2-3/4" OAL, 7/16" Shank Dia, 30 deg Helix, Bright/Uncoated Finish, Single End, Series 404 MSC# 00650531 Mfr# 404-4375 Ordered as Part #: 00650531 Big Book# 447