The Starrett 436MRL-100 Outside Micrometer is a high-quality tool designed for precision measurement of outside dimensions. With a range of 75-100mm and a resolution of .01mm, this micrometer provides accurate readings for inspecting and measuring metalwork. The ratchet stop and lock nut features ensure consistent and reliable measurements, making it an essential tool for CNC machining and manufacturing processes. Proudly made in the United States by the reputable brand Starrett, this outside micrometer is a reliable and efficient tool for a variety of industrial applications.