Abstract: An improved drill tip for a foundation pile comprises a frustro-conical upper section, a cylindrical middle section, and a generally conical lower section, all disposed in coaxial alignment about a center axis, the upper section for attachment to a foundation pile, and having a bottom edge diameter smaller than a top edge diameter and an upper helical flight having a radial extent less than the top edge diameter, the middle section extending from the bottom edge of the upper section and having approximately the same diameter as the bottom edge diameter, and the lower section extending from a lower edge portion of the middle section and having a plurality of symmetrically disposed helical fins having a radial extent less than the bottom edge diameter, the lowermost portion of the fins extending freely below the conical main body of the lower section in a configuration resembling a swiveling fishtail.