A turbo nozzle is a fast spinning zero nozzle. A zero nozzle is a pressure washer nozzle with a pin hole. It is the opposite of a fan spray pattern. Zero nozzles are extremely aggressive and most likely to cause surface damage. A turbo nozzle is just as aggressive. They are great for using on rough hard and non uniform surfaces like already damaged or worn concrete. Any uniform surface is likely to result in having a permanent circular or cross hatch pattern etched into it.