Vernier Caliper

A caliper is a device used for measuring distances. The Vernier Caliper consists of two main parts: the fixed component, which includes the basic scale (marked in millimeters and inches), and the sliding component, which features an index with a Vernier scale. The caliper has two pairs of jaws for different types of measurements: the larger jaws are used for measuring external dimensions, while the smaller, tapered jaws are designed for measuring internal dimensions, such as the diameter of holes. An extendable depth probe is also located at the lower end of the caliper, allowing depth measurements. The sliding section includes a retainer to release and lock the caliper in place during measurement. The Vernier scale enables measurements with an accuracy of up to 0.1 mm.