The Mic Groz Outside Micrometer is a precision measuring instrument designed for accurate external diameter and thickness measurements in the 0–25 mm range. Featuring a hardened steel thimble and spindle with a 0.01 mm graduation resolution, it delivers the repeatability and accuracy required by electricians, engineers, and maintenance technicians. Ideal for measuring cable diameters, component sizing, and quality control work on electrical and mechanical assemblies.