HY-PRO® Spiral Point Tap, Premium, Series: 289, Measurement System: Metric, UNF Thread, M16x1.5 Thread, Plug Chamfer, 3 Flutes, HSS-E, Steam Oxide, Class of Fit: 2B, Right Hand Cutting, 1-13/16 in Thread Length, 3-13/16 in Overall Length, 0.48 in Shank Dia, 60 mm Shank Length, Material Application: Aluminum, Alloy Steel, Carbon Steel, Cast Iron, Die Steel, Hardened Steel and Stainless Steel, D6 Thread Limit, Through Coolant: No