Features • Large Screen LCD Display: Enjoy fast and clear readings on the spacious LCD screen, making it easy to measure internal diameters accurately and efficiently • Durable Alloy Jaws: Crafted with chrome-finished alloy jaws, this caliper is built to withstand wear and tear, ensuring long-lasting performance even in demanding environments • Easy Unit Conversion: Effortlessly switch between metric and English measurements with a dedicated conversion button, streamlining your measurement process for convenience • Reliable Locking Screw: The locking screw feature secures your measurements, preventing any accidental shifts, so you can work with confidence and precision • Versatile Measurement Applications: Ideal for measuring internal diameters in various machining tasks, this tool is perfect for jewelers, watchmakers, and more Features: 1、Large Screen LCD Display: This digital internal caliper uses a large LCD display to show the value, which is fast and clear to read. 2、Alloy Jaw: This digital display internal caliper uses alloy jaws with chrome finish, which is strong and wear resistant and not easy to be damaged. 3、Metric And English Unit Conversion: This digital display has a unit conversion button on the internal card gauge, and the short button can be used for metric and English conversions (F for fraction function). 4、Locking Screw: This digital display has a locking screw within the gauge that locks clockwise to the current position and loosens counterclockwise to unlock. 5、Wide Application: This digital display internal gage is very widely used, and is mainly used for the measurement of the internal diameter of all kinds of machining. Specification: Item Type: Digital Inside Caliper Battery: CR2032 3V Button Cell x 1 ( Shipped Without Battery ) Specification: Approx. 12.7-216mm/0.5-8.5in Reading Value: Approx. 0.1mm/0.005in Accuracy Error: Approx. 0.2mm/0.01in Clear Reading, Small and Exquisite, Convenient to Use Role: Widely used in various types of machining internal diameter measurement. Package List: 1 x Digital Inside Caliper Package List 1 x Digital Inside Caliper