Industrial waterjets are one of the most widely used cleaning equipment that clean and rinse various surfaces. Washing cars is one of the main uses of household cleaners. Car's body washes better with waterjets than usual, but some of the harmful spots and rays on the surfaces do not disappear with water pressure alone. For this purpose, rotary washing brushes are used as a portable cleaning tool. These rotary brushes spin at a certain speed when water is sprayed through the duct, so that when the water is sprayed, the brush pressure on the body can removed quickly and effectively the greasy and hard pollutant.