California Proposition 65: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Tap Set, Tap Thread Size 1/4 In. -20, High Speed Steel, Bright (Uncoated), Thread Standard UNC, Thread Length 1 in, Overall Length 2 1/2 in, 75 Percent Thread Drill Size 5.11 mm, Thread Limit H3, Class of Fit Not Applicable, Thread Direction Right Hand, Number of Flutes 4. This item has been restricted from sale in the following state (s): []