Air tool accessories 4 brass air swivel connectors 90 degree angle 360 spin 2009-08-29.4 brass air swivel connectors 90 degree angle 360 spin. 1/4 npt fits all 3/8 air hoses. 90 degree angled connector is great for putting in air tools ot keep the hose out of your way. Connector freely spisn 360 degrees which helps keep the air hose from getting twisted.