Vermont Gage 112108140 Class Zz Plus Plug Gage 8.14mm

Product Description

The VERMONT GAGE 112108140 is a Class ZZ Plus plug gage machined from tool steel and ground to a 10 microfinish surface finish. It measures 8.14 mm in diameter with a tolerance of 0.005 mm, making it suitable for Go inspection applications where tight dimensional control is required. The overall length is 2.0 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, providing the documentation that quality-control and calibration environments demand. Machinists, toolmakers, and metrology technicians use plug gages like this one to verify bore dimensions on machined parts, fixtures, and assemblies.

This plug gage is intended for use in Go inspection routines where a bore must fall within a specified minimum diameter. Typical applications include incoming inspection, in-process quality checks on CNC-machined components, and calibration or verification of measuring instruments such as set micrometers, verniers, and other measuring devices. The 8.14 mm diameter targets metric bore sizes common in precision mechanical assemblies. It is well-suited for tool rooms, machine shops, and quality labs operating under ASME B89.1 standards.

Key Features

• Class ZZ Plus tolerance grade with 0.005 mm tolerance for precise Go inspection
• 8.14 mm diameter ground to a 10 microfinish surface finish
• Tool steel construction for durability and dimensional stability
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional gage standards
• Overall length of 2.0 inches for standard handle or pin-style use

Compatibility

Designed for use as a Go plug gage in Go inspection routines and for setting and verifying micrometers, verniers, and other measuring devices requiring an 8.14 mm reference diameter.

Installation Notes

Plug gages should be handled by metrology technicians or qualified inspection personnel familiar with ASME B89.1 gage practice. Store the gage in its protective case when not in use to prevent surface damage or corrosion. Apply a light film of instrument oil before storage. Do not force the gage into a bore - if it does not pass freely under light hand pressure during a Go check, the bore is undersized and should be returned for rework.