Starrett 71983 Micrometer Rod 1 to 2 Inches Depth Gage

Product Description

The STARRETT 71983 is a replacement micrometer rod designed for use with Starrett 443 and 445 Series micrometer depth gages. The rod extends the measurement range of compatible depth gages from 1 to 2 inches, allowing technicians and machinists to reach deeper bores, slots, and recesses. Rod-type anvil geometry provides consistent contact across irregular surfaces. At 5/32 inch in diameter, the rod is sized to seat correctly in the depth gage spindle without play. Installation and swap-out require no special tools, making this a straightforward field or shop replacement for worn or missing rods.

This rod is suited for dimensional inspection work in machine shops, manufacturing facilities, and precision maintenance environments. It is used wherever a 443 or 445 Series Starrett micrometer depth gage needs to measure to a 2-inch depth. Typical applications include checking step depths, blind hole depths, shoulder heights, and slot depths on machined parts. Machinists, quality control inspectors, and tool-and-die technicians are the primary users.

Key Features

• Extends measurement range to 2 inches maximum on compatible depth gages
• Rod-type anvil design for consistent contact on flat and recessed surfaces
• 5/32 inch rod diameter for proper fit in 443 and 445 Series spindles
• OEM-style replacement — direct swap with no modification required
• Sold individually for single-rod replacement or range-specific builds

Compatibility

Designed for use with Starrett 443 and 445 Series micrometer depth gages. Provides a measurement range of 1 to 2 inches when installed in a compatible gage.

Installation Notes

Installation is performed by machinists or quality control technicians familiar with micrometer depth gage assemblies. Before swapping rods, ensure the depth gage spindle and locking mechanism are fully released. Seat the rod fully into the spindle bore and verify the locking collar engages without wobble before taking measurements. Inspect the rod contact face for burrs or damage before use to avoid measurement errors.