Made from high-speed steel (HSSE) for exceptional hardness and wear resistance, ensuring long-lasting performance. Versatile round die suitable for Typical purpose threading, ideal for processing, correcting, or cleaning external threads. Features a conical locking hole for strong locking, preventing loosening during use, perfect for re-threading in hard materials. User-friendly devise with a positioning groove for easy alignment with fastening screws, simplifying the threading process. Compatible with various thread sizes (M10, M11, M12, M14, M15, M16, M18, M20, M22, M24) and thread pitches (0.5, 0.75, 1.25)., Manufacturer: Shiketong