Built for lasting durability in the busiest workshop, the STEELMAN 75050 Angled Push-On Brass Ball Foot Air Chuck with 1/4-Inch NPT Thread will always be ready for heavy-duty use. Made with a durable brass body, this compact inflation tool is designed to slip over the threads of valve stems for easy access when in use. The closed-style chuck seals the air passage when it's not in use, making it ideal for use on non-gauged tire inflators. The connection end is threaded 1/4-inch female NPT to easily fit male 1/4-inch NPT hose fittings and plugs. Perfect for commercial workshops and professional automotive mechanic use as well as in-home garages.