Inductive measuring probes have a plunger- or lever-style stem with a contact point on the end used to measure a workpiece or part. They are connected to remote measuring amplifiers and readings are shown on an external display. They can be stem-mounted in an indicator holder to inspect a stationary workpiece or part, and also used to inspect a part in motion on a lathe. Probes provide high-resolution measurements where small deviations and tight tolerances are important. They are commonly used on shop floors and measurement laboratories to take direct measurements on flat or cylindrical surfaces such as thickness measurements, radial or axial runout, and for height difference between steps.