HSS 1 1/8-20 UN Tap and Die Set, 1.125 Inch - 20 Thread Per Inch Unified Constant Pitch, Right Hand High Speed Steel Plug Tap and Round Threading Die for Industrial Machining, 2-Piece Kit

This 2-piece threading kit provides the necessary tools for professional-grade threading tasks involving the 1 1/8-20 UN (Unified Constant Pitch) size. The set consists of a high-speed steel (HSS) plug tap and a matching round die, both ground to precision standards with a 20 Thread Per Inch pitch. Because the tools are constructed from industrial-grade HSS, they maintain a sharp cutting edge when working with various metals. The plug tap is designed for efficient chip evacuation in both through-holes and blind holes, while the solid round die allows for accurate external threading on cylindrical workpieces. This set is a reliable choice for automotive repair, machinery restoration, and any industrial project requiring specific 1.125-inch UN thread standards.

• Precise 1 1/8-20 UN Specifications: Includes one 1 1/8-20 UN machine plug tap and one matching 1 1/8-20 UN round die. Engineered for creating or repairing threads with a consistent 20 Thread Per Inch pitch on a 1.125-inch diameter
• Industrial High Speed Steel: Manufactured from HSS (High Speed Steel) for excellent wear resistance and thermal stability. This material allows for clean threading in carbon steel, alloy steel, aluminum, and cast iron.
• Standard Right-Hand Threading: Both tools feature a right-hand (RH) cutting direction. The plug tap is designed with a lead taper for easy starting in through-holes, while the round die ensures a smooth, accurate finish on external rods.
• Unified Constant Pitch Application: Ideal for specialized mechanical engineering, maintenance, and custom fabrication where standard UNC or UNF threads do not meet the design requirements.
• Clear Size Identification: Each tool is laser-etched with the 1 1/8-20 UN designation and Thread Per Inch details for quick identification in a professional workshop or tool chest.