General description This Dormer HSS Duo set includes a plug tap and an A002 drill bit, designed for creating metric ISO M6 threads. The set is perfect for threading in various materials such as construction steel, carbon steel, pure aluminum, and aluminum castings, making it a versatile choice for DIY and professional projects. Technical specifications Number of pieces: 2 Material: High-Speed Steel (HSS), TiN coated spiral tip Shank type: Cylindrical handle Recommended pilot hole diameter: 2.5 times the thread diameter Thread type: ISO M6 Design: C-shaped cutting edge with 2-3 pitches of thread and a spiral tip Compatibility and accessories Compatible with manual drills Suitable for creating internal threads in metal and aluminum materials Includes a hanging hook for easy storage Installation Insert the drill bit into a compatible drill chuck Ensure the drill is set to a suitable speed for metalworking Use a pilot hole approximately 2.5 times the diameter of the thread Usage Secure