Note: The gage blocks not included. This Starrett #733 digital micrometer is a precise measuring tool for metalworking inspection and measurement. With a measurement range of 2-3 inches and a resolution of 0.00005 inches, it is perfect for CNC, metalworking, and manufacturing tasks. The micrometer is made in the United States and has an electronic reading. It is a high-quality item that meets the needs of business and industrial users.