Height & Depth Gages

Height and depth gages are precision dimensional instruments used to measure vertical distances, step heights, and bore depths against a reference datum. Height gages measure the distance from a surface plate or reference plane to a workpiece feature, while depth gages determine the depth of holes, grooves, slots, and recesses. Both instrument types are critical in dimensional inspection, quality control, and production metrology where tight tolerances must be verified.

Available in vernier, dial, and digital formats, modern digital height gages offer direct numerical readout, data output via USB or RS-232, and compatibility with SPC software. Depth micrometers and dial depth gages extend measurement capability to confined spaces and blind holes that calipers cannot easily reach.

Typical Applications

Incoming and final inspection of machined components against engineering drawings
Measuring step heights, ledge positions, and feature elevations on complex parts
Depth measurement of grooves, keyways, counterbores, and blind holes in precision machining
Surface plate metrology in quality control and calibration laboratories
Fixture and jig verification in toolroom environments

Popular Brands

Mitutoyo dominates this category with an extensive lineup of digital and analog height gages, including the popular 192-series, recognized for precision construction and reliability. Starrett and Fowler offer complementary solutions, while Mahr provides high-accuracy height measuring stations used in certified metrology labs.