The present invention is a laser aligning tool that has two weight bodies, a laser pointer unit, and a threaded tubular shaft. The laser pointer unit is positioned within one of the two weight bodies. While both weight bodies are similar in shape and mass, and both connected to the threaded tubular shaft, only the weight body without the laser pointer unit can be detached from the threaded tubular shaft. The user may remove and place one weight body to the flange opening and introduce the threaded tubular shaft with the other weight body to the opening of another flange in preparation of alignment. The user may then turn on the laser pointer unit and ensure the laser beam traverse through both threaded tubular shaft and the detached weight body for proper alignment.