15-Degree x 4.0 mm Quick Connect Chiseling Nozzle

Stainless steel chiseling (yellow color-coded) pressure washer spray nozzle with 4 mm orifice and 1/4 in (6.35 mm) Quick-Connect (QC) plug. Chiseling (yellow) QC spray nozzles have a 15 deg spray pattern for intense cleaning of unpainted hard surfaces such as grills, driveways, concrete or brick walkways or unpainted brick or stucco. The spray gun should be directed at a 45 deg angle to the surface and be used like a scraper to remove paint, grease and dirt. The orifice size of the nozzle determines the operating pressure of the end user's machine. Generally, the smaller the orifice, the greater the restriction of water flowing through the pressure washer. This causes the pressure to increase. As a general rule, QC spray nozzles with 4 mm orifices work excellent on pressure washers-rated between 500 psi with 1.4 gpm (low end) to 8000 psi with 5.7 gpm (high-end). The spray nozzle is designed to easily connect to a 1/4 in (6.35 mm) QC coupler and is ideal for quick exchange of spray nozzles and spray guns. It connects to all of the most common pressure washer equipment in the industry.