Depth micrometers

Depth micrometers are measuring instruments designed to accurately measure the depth of grooves, steps, recesses, slots, and cavities. Used in quality control and precision machining, they allow depth dimensions to be checked reliably and repeatably, making them essential in mechanical workshops, industrial production, and metrology laboratories.

Unlike traditional micrometers, a depth micrometer is made up of a precision-ground base and a measuring rod that moves perpendicular to the reference surface. This configuration allows the instrument to rest stably on the part while accurately measuring the depth of the recess or groove being checked.

The operating principle of the depth micrometer is simple but extremely accurate. After positioning the base on the reference surface, the rod is advanced until it reaches the bottom of the seat or groove. The ratchet system helps maintain constant measuring pressure during inspection, improving repeatability and reducing the risk of errors caused by operator-applied force.

Micrometric depth gauges are used to check grooves, slots, internal seats, steps, and hole depths in many industrial sectors. Thanks to their accuracy, they are widely used in precision mechanics, mould manufacturing, CNC machining, and dimensional inspection of mechanical components.

The range includes 0.01 mm depth micrometers with interchangeable rods and specific models for grooves or dedicated applications. Versions with extension rods allow the measuring range to be increased, adapting the instrument to different depths and dimensional configurations.

To choose the most suitable depth micrometer, it is important to consider the required measuring range, the geometry of the groove or recess to be checked, and the rod length needed. Correct instrument configuration allows accurate and reliable measurements to be achieved even in complex applications.