Made in USA of case hardened steel, This adapter is a MUST HAVE for shops, farms and shade tree mechanics. It threads onto your valve stem, and allows a much greater flow of air into your tire. This helps seat tubeless tires, or inflate large tires much faster than traditional air chucks....and HANDS FREE!!  You can remove and reinstall the valve stem core with this adapter in place. 

This adapter fit the common M-style air fittings and standard size valve stems.
(Rubber Valve stem not included for demonstration purposes only.)