Spiral Flute Tap, Thread Size 1/4 In. -20, UNC, Overall Length 2 1/2 in, Powdered Metal, CrC/C, Thread Length 7/16 in, 75 Percent Thread Drill Size #7, Thread Limit 3BX, Class of Fit 3BX, Thread Direction Right Hand, Number of Flutes 3. This item has been restricted from sale in the following state (s): []