Features: Two chucks cater to inner and outer wheels - straight foot for inner wheels and 30° reverse chuck for outer wheels. Ideal for inflating truck, RV, and bus inner duals with its 9" overall length. Crafted with a high-quality alloy steel body and a zinc alloy air nozzle. The standard quick plug is also made with solid zinc alloy, ensuring durability for both business and household use. Designed with an ergonomic rubber grip for comfortable and non-slip inflating operations, providing a pleasant user experience. Both ends lock on valve core threads to help to make hands free during inflating Push the air chuck on the valve stem firmly and lean it slightly to lock it onto the valve stem. When inflating, align it back straight to the valve stem and pull it off. The closed-flow air chuck allows air flow when engaged with valve cores and shuts off air flow when not linked. Widely applicable and convenient for various compressed air line uses. Equipped with a 1/4FNPT to fit most inflators, air pumps, and compressor accessories. The quick plug makes it easy to connect with quick couplers, ensuring versatility in usage. Specifications: Type: Air Chuck Material: Alloy Steel+Zinc Alloy Color: Silver Connection hole size: 1/4 internal thread Fit for American Standard Tire Valves Package Includes: 1 x Air Chuck 1 x 1/4" FNPT thread Heavy Duty Air Chuck for Trucks and RVs Ergonomic Design for Comfortable and Non-Slip Inflation