The DEWALT 20V MAX* Green Beam Rotary Tough laser allows users to use lasers in adverse conditions. This laser features dual orientation: can be used both vertically and horizontally. It has a durable design with over-mold handles for slip resistance and drop protection. With removable 5/8″ thread adaptor along with side and bottom ports. With a 20V MAX* Lithium Ion Battery Platform ensuring long run time.