Pittsburg Alleghany® Ground Thread Pulley Tap, Measuring System: SAE, Tap Style: Plug, 3/8"", 16 Pitch, Pitch Diameter Limits: H3, 1-1/4"" Thread Length, 4 Flute, Long Shank Type, 0.381"" Shank Diameter, Right Hand Cutting Direction, 6"" Overall Length, High Speed Steel