Vermont Gage 112310030 Class Zz Plus Plug Gage 10.03mm

Product Description

The VERMONT GAGE 112310030 is a Class ZZ Plus plug gage machined from tool steel and designed for precise go inspection of bored, drilled, and reamed holes. It measures 10.03 mm in diameter with a tolerance of 0.00508 mm, making it appropriate for applications that demand tight dimensional verification. The ground and lapped gaging surface carries a 10 microfinish rating, which supports consistent, repeatable contact with the workpiece. At 2.0000 inches overall length, the gage fits standard handle configurations used by machinists, quality technicians, and toolroom personnel. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for ISO-registered and AS9100-regulated shops.

This plug gage is used in dimensional inspection workflows where a specific hole diameter must be verified to close tolerance. Typical applications include go inspection of precision bores, calibration reference checks for micrometers, verniers, and other measuring devices, and first-article and in-process inspection on machined components. The Class ZZ Plus designation indicates the gage meets or exceeds the tolerance grade defined under ASME B89.1, making it suitable for general-purpose and intermediate-precision inspection environments in manufacturing, maintenance, and quality control settings.

Key Features

• 10.03 mm gaging diameter with 0.00508 mm tolerance per ASME B89.1
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface for consistent, low-friction gage insertion
• 2.0000 inch overall length compatible with standard plug gage handles
• Includes Certificate of Accuracy with NIST traceability for quality documentation
• Suitable for go inspection and calibration of micrometers, verniers, and measuring devices

Compatibility

Designed for use in standard plug gage handle systems for go inspection of 10.03 mm diameter holes; also suitable for setting and verifying micrometers, verniers, and comparable dimensional measuring instruments.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no power source or lockout procedure is required. Clean the gaging surface and the workpiece bore before use to prevent debris from affecting measurement accuracy or damaging the finish. Do not force the gage into an undersized bore, as this can cause premature wear or surface damage. Store in a protective case away from moisture and abrasive contact to maintain calibration integrity.