RIDGID® Pipe Tap, Measurement System: Imperial, 1-1/4-11-1/2 Thread, NPT Thread Standard, Tapered Chamfer, 1-3/4 in Thread Length, 4-1/16 in Overall Length, 4 Flutes, Right Hand Cutting Direction, 0.984 in Shank Diameter, 1-31/64 in Tap Drill, High Carbon Steel, Oxide