Carinodrillia hexagona is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies[1] The length of the shell varies between 15 mm and 25 mm.

The reddish brown shell is sharply pyramidal.

The hexagonal whorls are very finely striated, ribbed-tuberculated, the ribs six on each whorl.

The sinus is broad.

[2] This species occurs in the Pacific Ocean from Mexico to El Salvador.