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The TiCN coating on these taps protects them from wear and is harder and more wear-resistant than a TiN coating. Non-coolant-through taps do not have coolant holes, so a separate hose is required to bring coolant to the cutting area if it is needed. Powdered-metal with high-speed steel taps are an economical alternative to powdered-metal with cobalt taps. This listing is for each. Technical Specification Item Straight Flute Tap Thread Size 5/8-11 Thread Standard UNC Tap Chamfer Bottom Tap Material Powdered Metal Tap Finish TiCN Thread Length 1 1/16 in Overall Length 3 25/32 in 75% Thread Drill Size 13.60 mm Thread Limit H5 Thread Direction Right Hand Number of Flutes 5 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 Aluminum, Brass, Bronze, Cast Iron, Copper Primary Material Application ISO Code K, N Series 10056 Shank Dia. 15/32 in Shank Length 1 21/32 in Shank Type - Machining Straight Spiral Direction Neutral Square Size 0.3590 in Tap Grouping Individual Tap Style Straight Flute (Hand) Thread Limit / Class of Fit H5 Threads per Inch 11