1/4 4 flute , M42 Square Single End, Center Cut, 3/8 Shank, 1-1/4 LOC x 3-1/16 OAL
1/4 4 flute , M42 Square Single End, Center Cut, 3/8 Shank, 1/4 LOC x 2-1/8 OAL
1/4 4 flute , M42 Square Single End, Center Cut, 3/8 Shank, 5/8 LOC x 2-7/16 OAL