Dynabrade 95734 1/4-Inch NPT Flow Control Dynaswivel Air Line Connector, Silver Never fight an air hose again For use with most air toolsGrinders, Sanders, Glue Guns, Staple Guns, Drills, Buffers, etc The Dynaswivel is a universal-joint that connects portable air tools to an air line It improves tool maneuverability, minimizes operator fatigue and extends hose life Aluminum construction Swivels 360 Degree at Two Pivot Points allowing the air hose to drop directly to the floor while providing superb tool handling Swivels 360 Degree at two pivot points allowing the air hose to drop directly to the floor while providing superb tool handling Finger-tip air-flow control dial