A drive-cable liner is provided for centering a drive cable of a motorized tool, such as a weed trimmer. The liner comprises a hollow tube capable of circumferentially securing the drive cable. Annular elements are integrally formed along the exterior surface of the hollow tube, preferably using a corrugation process. Annular elements are longitudinally spaced along the hollow tube and have an exterior surface that urges against the interior of a shaft of the tool. The drive cable is thereby centered within the shaft.
