Precise measurement tool - A micrometer with a 0.01 mm crosshair scale, enabling measurements up to 1 mm in both directions. Essential for scientific research and educational use. Four calibration points - Four reference points: 5 mm, 0.6 mm, 0.15 mm, and 0.07 mm, providing reliable scales for a range of measurements. High quality material - Made from high quality optical glass, delivering excellent clarity and durability for extensive laboratory use. Secure packaging - Each micrometer is packaged in premium sponge to protect it during shipping and provide an elegant presentation. Use scenarios - Laboratory research and experiments requiring precise, small-dimension measurements of samples, films, or micro components. - Educational demonstrations in physics, engineering, or materials science labs to illustrate precision measurement. - Quality control in manufacturing, for checking tolerances and dimensions of tiny parts or circuit components. Specifications at a glance - Scale: 0.01 mm - Measuring range: up to 1 mm in both axes - Calibration points: 5 mm, 0.6 mm, 0.15 mm, 0.07 mm - Material: Optical glass - Packaging: Premium sponge packaging