Union Butterfield Union Butterfield Straight Flute Hand Tap, General Purpose, Measurement System: Metric, Coarse, M8x1.25, Plug Chamfer, 4 Flutes, HSS, Bright, Class of Fit: 6H, Right Hand Cutting, 1-1/8 in Thread Length, 2-23/32 in Overall Length, 0.318 in Shank Dia, Steel, Stainless Steel, Copper, Titanium, Nickel, Cast Iron, Aluminum Magnesium and Synthetic Materials Material Application, D5 Thread Limit