General Tools 102 0-Inch to 1-Inch .001-Inch Graduation Micrometer A practical and economical measuring devicefor beginners and hobbyists; Well-suited for use in training programs,general toolroom and machine shop use and automotive work Micrometer range is from 0 to 1 inches; Accuracy guaranteed to .001 inches Satin chrome thimble and barrel witheasy-to-read black contrasting graduations A special wrench is included for simple zero adjustments; Features ground and polished carbide measuring faces Engraved graduations are shown on the micrometer barrel; Also provides a lock for repetitive measurement