Thread Forming Tap, Thread Size 1/2 In. -13, UNC, Overall Length 3.38 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 0.94 in, 75 Percent Thread Drill Size 11.70 mm, Thread Limit H8, Class of Fit 2B. This item has been restricted from sale in the following state (s): []