Product Description Sold as 2 UNITS. Carded. 1-7/16" Across Flats. 1/2"-14NPT. Manufacturer number: 7005. SKU #: 26006. Country of origin: (TBA). Distributed by Irwin Industrial. From the Manufacturer Taper Pipe Die 1-7/16" Across Flat Die 1/2"-14 NPT. Advanced die geometry allows for faster cutting! This hexagon die is made of high carbon steel for cutting of external threads by hand. The die size is etched on the surface for easy identification. The first number represents the diameter of the machine screw die; the second number is the distance between the threads per inch. It's best suited for plumbing and air applications. Ideal for areas with limited space, just use a wrench or socket!