Starrett 71840 Micrometer Rod 449 Series Depth Gage

Product Description

The STARRETT 71840 is a micrometer rod accessory designed for use with 449 Series Micrometer Depth Gages. It extends the measurement range of compatible depth gages, allowing technicians and precision measurement professionals to reach deeper bore and step measurements accurately. The rod features a maximum measurement capacity of 3.0000 inches and is classified as a rod-type anvil accessory. It is a direct add-on component, not a standalone instrument, and is sold individually. Installers and metrology technicians working in machine shops, manufacturing, or inspection environments will find this rod essential for expanding depth gage reach without replacing the base instrument.

This rod is suited for use in precision measurement applications where depth gages are required to measure bores, slots, or recessed surfaces beyond the base instrument range. It is typically used in industrial, manufacturing, and quality control environments. The 71840 pairs with the STARRETT 449 Series Micrometer Depth Gages and is intended for professional use where accurate depth readings are critical. No specific residential or commercial HVAC, plumbing, or electrical application applies to this product.

Key Features

• Rod-type anvil design for depth gage extension use
• Maximum measurement capacity of 3.0000 inches
• Designed specifically for 449 Series Micrometer Depth Gages
• Sold as a single unit accessory
• Direct OEM-style replacement or supplemental rod for compatible gages

Compatibility

Designed for use with STARRETT 449 Series Micrometer Depth Gages, as specified by the manufacturer.

Installation Notes

This rod is installed by a trained metrology technician or machinist familiar with micrometer depth gage assemblies. Before attaching or removing the rod, ensure the depth gage is not under load and is resting on a stable, clean surface. Follow the 449 Series instrument manual for proper rod attachment procedure. No electrical shutoff or plumbing isolation is required for this accessory.