The Interapid 312b-3 Dial Test Indicator is a high-quality tool used for precise measurements in metalworking and manufacturing. With a measurement range of 0 to 0.016 inches, this indicator is capable of providing accurate readings for inspection and quality control purposes. The Interapid brand is known for producing reliable and durable measuring tools, making this dial test indicator a valuable asset for professionals in the CNC and metalworking industries.