Swivel air hose connector is ideal for pneumatic air tools such as grinders, sanders, drills and more Anodized aluminum makes the swivel air fitting lightweight and durable Base body size is 1/4" with a maximum working pressure of 150 PSI. Always use thread tape for a better seal Thread: 1/4" female and 1/4" male thread This connector accepts both standard threaded joints and fast change adapters 360 degree rotation at two pivot points prevents hose kinks and improves tool control and reduces operator fatigue, Manufacturer: LEMEIGUO