The Digital Optical Micrometer is a unique inspection tool that offers speed, precision, and repeatability. This time saving tool was designed specifically for measuring the width of scratches and vertical depth of surface features. "Visual inspection" is standard for any component with scratch or corrosion pit damage and maximum allowances are often specified. Other methods of visual inspection are time consuming and inconclusive. The micrometer can be used to measure damage on virtually any component; engines, drive trains, windshields, control surfaces, leading edges, propellers, shafts, rotors and more. Accurate measurement is essential to determine whether a part should be kept in service; the micrometer brings remarkable precision and integrity to this judgment process. Includes light source, scratch depth test plate, multiple lenses, and a protective hard carrying case for storage and portability.