Union Butterfield Spiral Point Machine Tap, Relieved, Series: 1534, Measurement System: Imperial, UNC, #8-32, Plug Chamfer, 2 Flutes, HSS, Bright, Class of Fit: 2B/3B, Right Hand Cutting, 3/4 in Thread Length, 2-1/8 in Overall Length, 0.168 in Shank Dia, Steel, Stainless Steel, Cast Iron, Titanium, Nickel, Copper, Aluminum Magnesium and Synthetic Materials Material Application, H3 Thread Limit