Features The bright finish on these taps provides a smooth, polished surface. Thread Size / M4x0.7 Thread Standard / Metric Tap Chamfer / Bottom Tap Material / High Speed Steel Tap Finish / Bright (Uncoated) Thread Length / 19.05 mm Overall Length / 54.10 mm 75% Thread Drill Size / 3.30 mm Thread Limit / D4 Class of Fit / 6H Thread Direction / Right Hand Number of Flutes / 4 Tap Length Standard / USCTI Tap Shank Standard / USCTI 55% Thread Drill Size / 3.50 mm 65% Thread Drill Size / 3.40 mm Extended Neck / Yes Measurement System / Metric Primary Material Application / All Materials Primary Material Application ISO Code / H, K, M, N, O, P, S Secondary Material Application / Aluminum, Brass, Bronze, Cast Iron, Copper, Steel Secondary Material Application ISO Code / K, M, N, P Series / 1003 Shank Dia. / 4.27 mm Shank Length / 34.93 mm Shank Type - Machining / Straight Spiral Direction / Neutral Square Size / 3.33 mm Standards / USCTI TABLE 302A Tap Grouping / Individual Tap Style / Straight Flute (Hand) Thread Limit / Class of Fit / D4 / 6H Thread Pitch / 0.70mm