Straight Flute Tap, Thread Size 1/4 In. -18, NPT, Overall Length 2 7/16 in, Cobalt, Bright (Uncoated), Right Hand, Thread Length 1 1/32 in, 75 Percent Thread Drill Size 7/16 in, Thread Limit Not Applicable, Class of Fit Not Applicable, Number of Flutes 4. This item has been restricted from sale in the following state (s): []