Abstract: When a pilot hole is pushed through the soil from one location to another prior to pulling an earth cutter through the pilot hole, it is often found that the pilot hole has deviated from a straight line. This deviation is usually at the maximum at the exit end of the pilot hole. The present device is a substantially rectangular cutter assembly having a pipe connection allowing it to be attached on the end or along the length of the pilot hole forming pipe. The offstanding cutter portion not only cuts a plug of soil as it is pulled through the soil in one direction, but compresses this plug slightly. When the device is moved in the opposite direction, projections or the like engage this compressed plug and facilitate the extrusion of the plug through the exit end of the pilot hole. The device is secured either to the end of the pilot hole forming assembly or adjacent thereto, at the exit end and is turned so that it is offset in the direction opposite to the direction of the deviation.