Features The bright finish on these taps provides a smooth, polished surface. Thread Size / 5/8 inch-11 Thread Standard / UNC Tap Chamfer / Plug Tap Material / Cobalt Tap Finish / Bright (Uncoated) Thread Length / 1-3/4 inch Overall Length / 3-25/32 inch 75% Thread Drill Size / 13.60 mm Thread Limit / H3 Thread Direction / Right Hand Number of Flutes / 4 Tap Length Standard / ANSI Tap Shank Standard / ANSI 55% Thread Drill Size / 14.20 mm 65% Thread Drill Size / 13.90 mm Coolant Fed / Non-Coolant Through Extended Neck / Yes Measurement System / Fractional Inch Primary Material Application / Hardened Steel; Steel Primary Material Application ISO Code / H; P Shank Dia. / 15/32 inch Shank Length / 1-31/32 inch Shank Type - Machining / Straight Spiral Direction / Neutral Square Size / 0.3590 inch Standards / ANSI Tap Style / Straight Flute (Hand) Threads per Inch / 11