Starrett 55399 Micrometer Case 2 Inches Outside Mic

Product Description

The STARRETT 55399 is a replacement protective case designed to store and transport outside micrometers with a maximum measuring range of 2 inches. Constructed from steel and vinyl, this case provides durable protection against impact and contamination during storage or transit. It is a direct accessory for specific Starrett outside micrometer models and is the type of item kept on hand by precision machinists, metrologists, and calibration technicians who need to protect measurement tools between jobs.

This case is suited for shop floor, toolroom, and field service environments where outside micrometers are part of daily inspection work. It is sized specifically for 2-inch capacity outside micrometers, making it a purpose-fit replacement for a lost or damaged original case rather than a universal option. Typical users include machine shop technicians and QC inspectors who rely on consistent tool protection to maintain calibration integrity.

Key Features

• Fits outside micrometers with a maximum measuring range of 2 inches
• Steel and vinyl construction for impact resistance and longevity
• Direct replacement for original Starrett micrometer cases
• Compact form factor matched to the 2, 2A, 2M, and 2MA micrometer footprint

Compatibility

Designed for use with the Starrett 2, 2A, 2M, and 2MA outside micrometers with a maximum measurement of 2 inches.

Installation Notes

No installation is required for this accessory. Inspect the case for damage before placing the micrometer inside to ensure the tool is fully supported and protected. Keep the case closed during storage to prevent contamination of the micrometer anvil and spindle surfaces.