General description Heavy-duty closed flow lock on tire chuck designed for use with tire inflators and gauges. This set includes 6 air chucks that are built to withstand high pressure and provide reliable performance. Technical specifications Rated pressure: 250 PSI Material: Brass Thread type: 1/4 inch Female NPT Color: Copper Compatibility and accessories Compatible with Schrader valves Includes 6 air chucks Installation Heavy-duty straight tip for easy filling of tires Locking clip keeps the chuck securely attached to the valve stem during inflation Usage Designed for use with tire inflators and gauges Closed flow design allows air to flow when the internal flow valve is open Other information