Hexagon Die, National Pipe Taper Thread, 1/2-In. x 14
1/2" x 14 national pipe taper thread, 1-7/16" across, hexagon die, carbon steel, ideal for plumbing, air applications & for rethreading where high accuracy & tolerance thread is not critical, recommended for use with hexagon die stock, die can be used with a wrench or socket when space is limited, designed for hand threading work in a variety of materials.