Laser straight line tool, is a substantial device that integrates optics, specialists, electrical power, and also a computer system. The tool is divided right into two components. One element is the host part, as well as also the different other component is the projector part. The host component builds up the perspective signal, or hand-operated signal of the perspective, determines as well as processes the signal and handles the optical scanning system to scan in real-time. The projector component utilizes a laser system and likewise an optical scanning system to generate a laser scanning line under the control of the host, as well as job it in any kind of directions as well as any type of sort of setup in the two-dimensional space. This scanning line is constantly parallel to the point of view.