Abstract: A wire line core barrel for retrieving a core sample within a drill string. The wire line core barrel includes a conventional inner tube and also includes a generally cylindrically shaped retrieving assembly disposed above a generally cylindrical elongate body having a fluted periphery comprising a plurality of longitudinal ribs and longitudinal channels. Means for attaching the inner tube assembly to the drill string are mounted on the ribs of the elongate body. The channels of the elongate body provide a straight, longitudinal passageway for fluids flowing through the drill string.