MORSE Spiral Flute Tap, High Performance, Series: EK193 ALU-POWER, Measurement System: Imperial, UNF, 1/4-28, Semi-Bottoming Chamfer, 3 Flutes, HSS-PM, TiCN Coated, Class of Fit: H4, Right Hand Cutting, 7/16 in Thread Length, 2-1/2 in Overall Length, Right Hand Flute Direction, H4 Thread Limit, Steels, Steel Alloys, Stainless Steels, Titanium Alloys, Nickel and Nickel Base Alloys and Other Exotic Alloys Material Application