The Bosch GLL3-80 360° Three-Plane Leveling and Alignment-Line Laser generates three 360° laser planes – one horizontal and two vertical – for level, plumb and square applications. Designed for finish carpenters, remodelers, electricians and others who need to be able to line up a room from one point, the laser increases productivity because its two vertical lines cross at 90° angles to quickly square the layout of a room. It is a total level and alignment solution without any rotating motors. It projects in three axis planes simultaneously and can be switched between triple axis plane, vertical-only and horizontal-only modes. It comes with a BM1 Positioning Device for versatile and quick set up.