Vermont Gage 112106400 Class Zz Plus Plug Gage 6.4 Mm

Product Description

The VERMONT GAGE 112106400 is a Class ZZ Plus plug gage designed for go inspection of hole diameters at 6.4 mm. Machined from tool steel and finished to a 10 microfinish surface quality, it delivers the tight dimensional accuracy required for production floor and quality lab environments. Tolerance is 0.00508 mm, conforming to ASME B89.1 standards. Each unit ships with a Certificate of Accuracy that carries NIST traceability, supporting ISO-compliant inspection records. This gage is used by machinists, quality technicians, and metrology professionals who need a reliable, traceable go-member for routine hole acceptance checks.

The 112106400 is suited for go inspection tasks on production machined parts where a 6.4 mm hole diameter must be verified. It is also used to set and verify micrometers, verniers, and other measuring devices requiring a known reference diameter. The 2.0 inch overall length fits standard plug gage handles and is appropriate for both bench inspection and in-line production use across light manufacturing, aerospace component shops, and precision machining operations.

Key Features

• Class ZZ Plus tolerance at 0.00508 mm for tight go-inspection accuracy
• 10 microfinish surface for consistent, low-wear contact during inspection
• Tool steel construction for durability in production environments
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability
• Compatible with standard plug gage handles for flexible bench or line use

Compatibility

Designed as a go-member plug gage for use with standard plug gage handles; also functions as a setting reference for micrometers, verniers, and other measuring devices requiring a traceable 6.4 mm diameter reference.

Installation Notes

Plug gages should be handled by metrology or quality technicians following shop calibration procedures. Store in a protective case away from temperature extremes to maintain dimensional stability. Clean the gage and the part bore before inspection to prevent false readings from chips or coolant. Do not force the gage through an undersize bore, as this will damage the gage surface and invalidate NIST-traceable calibration.