This high-quality Starrett Micrometer is a precision tool used for accurately measuring the outside dimensions of a variety of objects. With a minimum measurement of 1 inch and a maximum measurement of the Micrometer type, this mechanical micrometer is perfect for use in metalworking inspection and measurement. The micrometer has a resolution of 0.00100 inches, making it the perfect tool for professionals in the CNC, metalworking, and manufacturing industries.