Ridgid 37830 NPT 3/4" 14 TPI Pipe Die Replacement SetRidgid Pipe and Tubing Tools include the legendary Ridgid pipe wrench, the most complete and premier line of threading and roll grooving equipment, best-in-class pipe and tubing cutters, bending and forming tools, and a variety of other pipe-working tools and accessories. Ridgid Pipe and Tubing Tools perform the same every time, job after job, under the toughest conditions.Ridgid 37830 NPT 3/4" 14 TPI Pipe Die Replacement Set Features:; NPT; Alloy RH; 14 TPI* available image may differ slightly from actual product