Vermont Gage 111320250 Class Zz Plus Plug Gage

Product Description

The VERMONT GAGE 111320250 is a Class ZZ Plus plug gage designed for precise go inspection of bored holes and machined features. Manufactured from tool steel with a 10 microfinish surface, this gage holds a tolerance of 0.0002 inches at a nominal diameter of 0.2025 inches. At 2.0 inches overall length, it is sized for handheld use in shop or inspection environments. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting quality documentation requirements. Machinists, quality technicians, and tool-and-die professionals use this gage to verify whether a workpiece hole accepts a part within specification.

This plug gage is suited for incoming inspection, in-process quality checks, and final verification on machined components in both production and job-shop settings. It is also used to calibrate or verify the accuracy of set micrometers, verniers, and other measuring devices. Applications span general metalworking, precision machining, and any manufacturing environment where ASME B89.1 compliance is required for dimensional inspection.

Key Features

• Class ZZ Plus tolerance for go inspection at 0.2025 inches nominal diameter
• Tolerance of 0.0002 inches for precise dimensional verification
• 10 microfinish surface for consistent, wear-resistant contact
• Tool steel construction for durability in production environments
• NIST-traceable Certificate of Accuracy included with each unit
• Conforms to ASME B89.1 dimensional standards

Compatibility

Designed for go inspection of machined holes and for use as a reference standard with set micrometers, verniers, and other measuring devices as stated by the manufacturer.

Installation Notes

Plug gages should be handled and stored by quality or metrology personnel following established gage handling procedures to prevent damage to the precision surface. Before use, clean the gage and the workpiece bore to remove chips, coolant, and debris. Never force a go gage into a hole; if it does not pass with light hand pressure, the feature is out of specification. Periodic recalibration against a NIST-traceable standard is recommended to maintain measurement integrity.