Scientific Cutting Tools (SCT) is a family-owned business dedicated to producing top-tier cutting tools, all proudly made in the USA. Our metric thread mills are crafted from premium sub-micron carbide, offering exceptional precision and durability for international manufacturing standards. Whether you need standard metric threads or specialized profiles, SCT’s thread mills deliver the accuracy and longevity required for high-performance machining. Browse our selection to find the right tool for your application.