The Vintage LUFKIN No. 514 DEPTH MICROMETER is a precision tool for measuring depths up to 6 inches, with a resolution of 0.00100 inches. Made in the United States, this depth micrometer features a mechanical reading and comes in a wooden box for safe storage and transportation. The Lufkin brand is known for its quality and reliability in the field of metalworking inspection and measurement, making this micrometer a valuable asset for professionals in the CNC, metalworking, and manufacturing industries.