Thread end mills are specialized tools used to machine internal or external threads through helical interpolation. Unlike taps, thread end mills can produce threads of various sizes with a single tool and are suitable for blind holes. They offer better control, reduced breakage risk, and high thread accuracy. Thread end mills are widely used in CNC machining for steel, aluminum, and stainless steel components. B2B customers choose thread end mills for flexibility, precision, and consistent thread quality, especially in high-value or difficult materials.