Spiral Point Tap, Thread Size 1/4 In. -28, UNF, Overall Length 2 1/2 in, High Speed Steel, TiN, Right Hand, Thread Length 5/8 in, 75 Percent Thread Drill Size 5.45 mm, Thread Limit H5, Class of Fit 2B-3B, Number of Flutes 3. This item has been restricted from sale in the following state (s): []