Ridgid 38120 NPT 2 1/2" - 4", 8 TPI Pipe Die For 141 Receding Geared Threader Ridgid 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 38120 NPT 2 1/2" - 4", 8 TPI Pipe Die For 141 Receding Geared Threader Features: NPT High Speed RH 8 TPI Nominal Pipe Capacity: 2 1/2" through 4"