Contact point type

A contact point, also known as a probe or stylus, is a critical component of a dial indicator or digital indicator used for precise measurement. It is the part that physically contacts and interacts with the surface being measured. The point serves as the interface between the indicator and the workpiece, transferring any linear movement or deviation to the indicator's internal mechanisms for amplification and display on the dial or digital readout. Contact points are often replaceable and interchangeable on dial and digital indicators, allowing users to swap them as needed for different applications.