Union Butterfield Spiral Flute Tap, High Performance, Series: 1660AP HMD Applix, Measurement System: Metric, UNC Thread Standard, M4x0.7 Thread, Semi-Bottoming Chamfer, 3 Flutes, HSS, TiAlN Coated, Class of Fit: 6H/D4, Right Hand Cutting Direction, 6 mm Thread Length, 63 mm Overall Length, 0.168 in Shank Diameter, Right Hand Flute Direction, H6 Thread Limit, Alloy Steel, Bronze, Cast Iron, Hardened Steel, Nickel Alloys, Stainless Steel and Titanium Alloys Material Application, No Through Coolant