Straight Flute Tap, Thread Size 1/2 In. -20, UNF, Plug, Overall Length 3 3/8 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 15/16 in, 75 Percent Thread Drill Size 11.40 mm, Thread Limit H5, Class of Fit 2B. This item has been restricted from sale in the following state (s): []