Three-Piece Hand Tap Set, Tap Thread Size M4x 0.7, High Speed Steel, Bright (Uncoated), Thread Standard Metric Coarse, Thread Length 19.05 mm, Overall Length 53.97 mm, 75 Percent Thread Drill Size 3.30 mm, Thread Limit D4, Class of Fit 6H, Thread Direction Right Hand, Number of Flutes 4