Scientific Cutting Tools offers a complete line of ACME and Stub ACME Thread Mills for both internal and external threading applications. ACME threads are ideal for power transmission and load-bearing applications, while Stub ACME threads provide a shallower profile for thinner wall components. Our tools are engineered for precision and durability, ensuring consistent performance in a variety of materials. Whether you need full-form ACME threads or the modified Stub ACME variant, internal or external, we deliver the accuracy and reliability demanded by today’s most challenging machining operations.