Vermont Gage 112111400 Class Zz Plus Plug Gage 11.4 Mm

Product Description

The VERMONT GAGE 112111400 is a Class ZZ Plus cylindrical plug gage machined from tool steel for go-type inspection of bored, reamed, or machined holes. Designed to verify that a hole meets its minimum acceptable diameter, the gage conforms to ASME B89.1 standards and carries a Certificate of Accuracy with NIST traceability. The nominal diameter is 11.4 mm with a tolerance of 0.005 mm, and the working surface is finished to a 10 microfinish for consistent, repeatable contact. Overall length is 2.0000 inches. Licensed metrology technicians, machinists, and quality inspectors rely on this gage for production floor and inspection room use.

This plug gage is suited for go inspection applications in manufacturing and machine shop environments where hole diameter verification is required before assembly. It is also used as a setting standard for micrometers, verniers, and other measuring devices that require a known reference diameter. The 11.4 mm size targets metric-dimensioned bores common in precision machined components. Typical users include CNC machinists, QC technicians, and tool room inspectors working to close-tolerance print requirements.

Key Features

• Class ZZ Plus tolerance of 0.005 mm for tight, reliable go inspection
• 10 microfinish surface for consistent gage contact and extended wear life
• Tool steel construction for durability in production environments
• Conforms to ASME B89.1 dimensional standard
• Includes Certificate of Accuracy with NIST traceability for documented calibration chain
• Compatible as a setting standard for micrometers, verniers, and other measuring devices

Compatibility

Designed for go inspection of 11.4 mm diameter holes and as a setting reference for micrometers, verniers, and other measuring devices, per the application data provided with this part.

Installation Notes

Plug gages should be handled by metrology or quality control personnel following established gage handling procedures. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surface. Never force the gage through a hole; a go gage should pass under its own weight or with light hand pressure only. Store in a protective case away from temperature extremes to maintain dimensional stability and NIST traceability integrity.