5/16 4 flute , HSS Square Single End, , 3/8 Shank, 1-3/8 LOC x 3-1/8 OAL

A-76 5/16 4 flute , HSS Square Single End, , 3/8 Shank, 1-3/8 LOC x 3-1/8 OAL 30 flute Angle Long