100 Pack of Erie Tools 3.5 Stainless Steel Orifice 0 Degree 1/4in. Quick Connect 4000 PSI High Pressure Washer Spray Nozzle Tips100 Pack of Erie Tools 3.5 orifice, 1/4-inch Quick Connect, stainless steel, 0° nozzles that will handle up to 4,000 PSI.Nozzle Orifice Size: 3.5Quantity: 100 Pack0° nozzle high-pressure cutting spray tipMaximum PSI: 4,0001/4-inch stainless steel insert.Delivers a concentrated stream that can gouge or cut.Through-hardened stainless steel orifices offer superior wear resistance.Stainless Steel housing resists cracking and wear.Resistant to most chemicals.Laser marked for clarity.Large, color-code surrounds nozzle tip for fast and easy identification of spray angle.0° Nozzle Applications:Cleaning tar, glue, or stubborn stains from concrete or other hard surfaces.Removing caked-on mud from heavy machinery, and farm or lawn equipment.Cleaning overhead areas.Removing rust from steel and oxidation from aluminum.Caution: The spray force from these nozzles can cause bodily injury if pointed directly at the operator or others. Disconnect from spray wand before inspection.Make sure spray nozzle is properly locked in place with the quick coupler. The nozzle will become a dangerous projectile if it is not properly locked into position. Improper locking will also result in the o-ring being blown out of place.