Vermont Gage 112112700 Class Zz Plus Plug Gage 12.7mm

Product Description

The VERMONT GAGE 112112700 is a Class ZZ Plus plug gage machined from tool steel and designed for go inspection of bored, reamed, or drilled holes. It measures 12.7 mm in diameter with a tolerance of 0.00508 mm, making it suitable for high-precision verification tasks in production and quality control environments. The plug gage features a 10 microfinish surface coating that reduces wear and maintains dimensional integrity over repeated use. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for ISO and AS9100 quality programs. Machinists, metrology technicians, and quality inspectors are the primary users of this tool.

This plug gage is used to verify hole diameters in precision machined components across metalworking, manufacturing, and inspection environments. It serves as a reference standard for setting micrometers, verniers, bore gages, and other measuring devices to a known diameter. Typical applications include incoming inspection, in-process quality checks, and final part acceptance in both job shop and production floor settings. The overall length of 2.0000 inches fits standard handle and gage block configurations commonly used in bench inspection setups.

Key Features

• 12.7 mm diameter with 0.00508 mm tolerance for precise go inspection
• Class ZZ Plus classification per ASME B89.1
• 10 microfinish surface coating for extended service life
• Tool steel construction for durability and dimensional stability
• Certificate of Accuracy included with NIST traceability
• 2.0000 inch overall length fits standard gage handles and fixtures

Compatibility

Designed for use as a go inspection gage and as a setting standard for micrometers, verniers, bore gages, and other precision measuring devices requiring a 12.7 mm reference diameter.

Installation Notes

Plug gages are handled and used by metrology technicians and quality inspectors and require no mechanical installation. Store the gage in its protective case when not in use to prevent surface damage. Clean contact surfaces with a lint-free cloth before each use. Avoid dropping or striking the gage, as impact can alter the geometry and invalidate the NIST-traceable certification.