The DEWALT Automotive Coupler (½ in. FNPT x ½ in. Body) provides maximum airflow capacity for your most demanding air tools using ½ in. automotive plugs. This professional-grade coupler features ½ in. NPT female threads that accepts male-threaded components. The reliable 6-ball design ensures secure connections that engage and disengage quickly. The large ½ in. body delivers exceptional airflow of 100 SCFM @ 90 PSI - perfect for air-intensive tools like large impact wrenches, sanders, and industrial air hammers. Built to withstand pressures up to 300 PSI, this coupler maintains secure connections even in high-pressure systems. The type and size are clearly engraved on the body for easy identification in your toolbox. Material: Steel.