A digital caliper is a precision measuring tool used to measure the dimensions of an object, such as its length, width, and depth. It features a digital display that shows measurements in either millimeters or inches, making it easy to read. Digital calipers can measure both external and internal dimensions, as well as depths, using a sliding mechanism. These tools are commonly used in various fields, including engineering, woodworking, and metalworking. They provide accurate measurements, often down to a fraction of a millimeter, which is essential for tasks that require high precision. Digital calipers are user-friendly and often come with features like automatic shut-off and data hold.