Overview Reviews Product Description HSS General purpose NPT (National Pipe Thread Tapered) - 60° thread form Used to create external pipe and conduit threads. Clarkson Osborn Catalog Product Videos Custom Field Size 1/8"-27 NPT Outer diameter 1-5/16" Package quantity/sold as each 1 Product Reviews Write a Review Write a Review × Clarkson-Osborn 1/8"-27 NPT x 1-5/16" HSS Round Die TA26108 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *