Chiseling nozzle designed for a 1/4 quick coupler. Ideal for quick exchange of spray nozzles and spray guns. The spray should be directed at a 45 angle to the surface and be used like a scraper to remove paint, grease and dirt. Uses: Surface preparation (removing peeling paint and mildew stains), cleaning gutters and downspouts and bugs from trucks. Connects to all of the most common pressure washer equipment in the industry. 4,000 PSI.