We know the core use of Vernier Calipers is for measuring the distance between two opposite sides of a surface. We can measure the internal and external dimensions and even the height of an object with accuracy. It can measure up to one-hundredth of a millimeter.
A micrometer, sometimes known as a micrometer screw gauge, is a device incorporating a calibrated screw widely used for accurate measurement of components in mechanical engineering and machining as well as most mechanical trades, along with other metrological instruments such as dial, vernier, and digital calipers.
The caliper is a tool for measuring the length.The outer caliper is used to measure the outer diameter of the cylinder or the length of the object.The inner caliper is used to measure the inner diameter or groove width of the cylindrical hole.Made of high quality stainless steel, solid ,anti-rust and durable.