Vermont Gage 111140800 Class Zz Plus Plug Gage 0.408 in

Product Description

The VERMONT GAGE 111140800 is a Class ZZ Plus plug gage designed to verify bore and hole diameters to a nominal size of 0.408 inches. Built from tool steel with a 10 microfinish surface, it holds a tolerance of 0.0002 inches, making it suitable for Go inspection routines in precision machining and quality control environments. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming compliance with ASME B89.1 dimensional standards. Machinists, quality technicians, and metrology lab personnel are the primary users of this type of tooling.

This plug gage is used in applications where hole diameter must be confirmed within tight tolerances before assembly or further machining. It is appropriate for use with Go inspection setups and as a reference standard when calibrating or verifying set micrometers, verniers, and other measuring devices. The 2.0-inch overall length provides adequate handling clearance for most bench and floor inspection stations. It is well suited to both production floor spot-checks and formal dimensional inspection workflows in job shops, manufacturing facilities, and metrology labs.

Key Features

• Class ZZ Plus tolerance grade at 0.0002 inches for high-accuracy Go inspection
• 10 microfinish surface finish on the gaging member reduces wear and improves measurement repeatability
• Tool steel construction provides hardness and dimensional stability under repeated use
• Complies with ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for quality documentation requirements
• 2.0-inch overall length suits standard bench inspection handling

Compatibility

Designed for Go inspection of holes and bores at 0.408 inches nominal diameter, and for use as a reference when setting micrometers, verniers, and similar measuring devices.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no permanent installation is required. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean the gaging member with a lint-free cloth before each use to remove oils, chips, or debris that could affect measurement accuracy. Periodic recalibration against a traceable standard is recommended to maintain gage integrity over time.