Tru-Flate' s extra long, Dual Foot Air Chuck, for hard to reach inner duals, features a straight-on head with a threaded, deep well lock that holds chuck securely in place when tilted, 12 inch long overall length, and chrome plated, all metal construction. Built to withstand the toughest home garage or shop use. Not for use with inflator gauges - chuck has it's own shut-off valve and will not work with inflator gauges which are intended to regulate the air flow. 1/4-18 female NPT inlet threads. Tru-Flate is part of the Plows & Edelman group. Plows Manufacturing and Sales Corporation was originally founded by R. G. Plows in 1927. At that time, the railroad industry was the primary focus for the company's extensive line of oil cans. As the transportation industry went from trains to passenger cars and trucks, Plows shifted their focus to developing the tools necessary to service this new mode of transportation. Fast forward 90 years and Plows has become part of Plows & Edelman. Today, Plows & Edelman is a leading designer, manufacturer and distributor of a broad range of automotive parts and tools sold to the vast majority of mass merchant, retail auto parts stores and wholesale automotive parts and industrial distribution outlets, worldwide.