( 1 ) NEW RIDGID 37650 Manual Threading Die Heads are high-quality pipe and bolt die heads designed for right-hand thread direction. Made in the United States, this set includes a pipe die attachment for added versatility. Perfect for pipe threaders, taps, and dies, these die heads are durable and reliable for a variety of industrial and commercial applications. The RIDGID brand ensures a trusted and reputable tool that will meet the demands of your project.