Dormer Straight Flute Hand Tap, General Purpose, Series: E071, Measurement System: Imperial, UNF, 2-15/16, Plug Chamfer, 4 Flutes, HSS, Bright, Class of Fit: 2B/3B, Right Hand Cutting, 0.81 in Thread Length, 2-15/16 in Overall Length, 0.381 in Shank Dia, Alloy Steel, Aluminum Alloy, Brass, Bronze, Carbon Steel, Cast Iron, Copper, Copper Alloy, Hardened Steel, Plastic, Steel, Structural Steel and Thermosetting Plastics Material Application, H3 Thread Limit