Starrett 71975 Micrometer Depth Gage Rod 2 to 3 in

Product Description

The STARRETT 71975 is a micrometer extension rod designed for use with the 440 Series Micrometer Depth Gages. It extends the measurement range of the depth gage from 2 to 3 inches, allowing technicians and machinists to take precise depth readings in that range. The rod measures 3.0 inches in overall length with a rod diameter of 1/8 inch (3.20 mm). At 0.1 pounds, it is a lightweight accessory that integrates directly with compatible depth gage bases. This rod is a direct replacement or supplemental rod for professionals who need to expand their depth gage measurement capability on the job.

This rod is used in precision measurement applications across machine shops, manufacturing facilities, and field service environments. It is suited for measuring bore depths, slot depths, and step heights in the 2 to 3 inch range. Installers and machinists working in HVAC, plumbing, or industrial trades who require accurate component depth measurements will find this rod a practical addition to the 440 Series depth gage setup. It is sold individually as a single-piece accessory.

Key Features

• Extends 440 Series Micrometer Depth Gage measurement range to 2 to 3 inches
• Rod diameter of 1/8 inch (3.20 mm) for precise fitment in depth gage base
• Overall length of 3.0 inches
• Lightweight at 0.1 pounds for easy handling
• Sold individually — one rod per package

Compatibility

Designed for use with the STARRETT 440 Series Micrometer Depth Gages as stated by the manufacturer.

Installation Notes

Installation of this rod should be performed by a qualified machinist or technician familiar with micrometer depth gage assemblies. Ensure the depth gage base is clean and free of debris before seating the rod to maintain measurement accuracy. Do not force the rod into the base — hand-tighten only per the gage manufacturer guidelines. Verify calibration after rod changes before taking critical measurements.