Abstract: An operable coulter frame is removably mounted on a farm implement of the type having a tool bar with foldable ends. The operable frame includes a central shaft rotatably mounted on the tool bar, and a pair of auxiliary shafts rotatably mounted on the foldable ends of the tool bar. The auxiliary shafts engage the central shaft when the tool bar and foldable ends are located in a coaxial operable position. A support bar is mounted to the central shaft, with auxiliary support bars mounted to the auxiliary shafts, for pivotal movement with the rotation of the associated shafts. Ground working tools are mounted on the support bars and movable between a lowered operable position located forwardly of the tool bar and tool bar ends, and an upper storage position raised above the tool bar and tool bar ends. A drive motor is mounted on the implement and connected to the central shaft to raise and lower the support bars.