Abstract: The present invention is directed to a log splitting device. It is, in combination, a manually operated, power jack hammer device with a tool attached thereto having a vertical shaft and the shaft having a log splitting head located thereon. The power jack hammer may be powered numatically, by electric power, or by a small engine. The tool has vertical shaft which is removably held within a tool holder section of the jack hammer. This tool has a log splitting head at one end and the vertical shaft at the other end. The log splitting head is made of solid metal and has a three dimensional maximum set of dimensions, each of which exceed the largest width, or in the case of a cylindrical shaft, diameter, of the vertical shaft.