The 1/2″ NPT Super Air Nozzle packs the hardest blow, delivering the strongest blowing force of any single air nozzle. The whopping 3.3 pounds (1497 grams) of force provides “reach” when the Super Air Nozzle can not be mounted close to the surface being blown off, cooled or dried. This is more force than (4) of the smaller 1/4 NPT Super Air Nozzles combined! This additional force is suited to moving heavy materials, ejecting parts from molds, and removing parts from punch presses. Zinc aluminum alloy is suited to general purpose applications. Stainless Steel is best for high temperature and corrosive environments.