The Karcher DB 180 is a specialized dirt blaster designed for use with K 7 class pressure washers. It features a rotating point jet that concentrates water pressure to tackle stubborn grime, making it an effective tool for clearing mossy stones or weathered outdoor surfaces that have been exposed to the elements. This nozzle provides a cleaning performance that is 100% greater than a standard flat jet, allowing you to work through large areas more quickly. While it fits most modern equipment, you will need an M adapter (2.643-950.0) if you are using an older spray gun manufactured before 2010, such as models M, 96, or 97.