Tap, Tap Style Spiral Flute, Tap Dimension Type Inch, Tap Thread Size 1/4 In.-20, Tap Chamfer Semi-Bottoming, Number of Flutes 3, Pitch Diameter Limit Not Rated, Tap Material Cobalt, Tap Finish TiAlN, Tap Thread Type UNC, Right Hand, Thread Length 43/64 In., Shank Dia. 0.255 In., Overall Length 3-9/64 In., Number of Pieces 1. This item has been restricted from sale in the following state(s): []