The Depth Gauge Rod works as an accurate measuring element that reacts to physical contact during depth inspection. As the rod touches a surface or recess, it moves in a straight path to reflect the depth variation encountered. This linear motion is transmitted to the gauge display mechanism, allowing clear depth interpretation. The rod responds smoothly to both shallow and deep measurements, ensuring consistent output.Attributes:• Measures internal depth within a range of 177.8 mms to 203.2 mms.• Ensures reliable operation during manual measurement.• Keeps interaction steady with internal gauge elements.• Transfers displacement without delay to the gauge system.Applications: The Depth Gauge Rod is installed inside depth measuring instruments, where it moves linearly upon surface contact to indicate depth variation through the gauge mechanism.