The MG1001 Precision Micrometer is a professional-quality measuring tool with inch graduations. It reads to 0.001 inches and is accurate to 0.0003 inches. The micrometer has a range of 0 to 1 inch and features a forged steel frame to eliminate flexing for greater accuracy. The hardened and precision-ground measuring surfaces ensure durability, while the satin chrome barrel and thimble with black etched graduations make it easy to read.