The tire chuck adopts a push-in chuck design; No need to thread the chuck onto val ve stems, just push the chuck onto the val ve for a nice seal Constructed with metal alloy and brass, offers more hardness and durability, resistance and wear resistance, which is a perfect no matter for business or household use, will serve you faithfully for years for Head Air Chuck with standard NPT Small size allows for easy carrying and storage, can meet your different requirements Tire chuck has the function of checking pressure and inflation, NPT threads make this gauge fit for most tire inflators, Manufacturer: INSEOWI