Vermont Gage 111189300 Class Zz Plus Plug Gage 0.893 in

Product Description

The VERMONT GAGE 111189300 is a Class ZZ Plus plug gage manufactured from tool steel, designed to perform go inspection on bored, reamed, or machined holes with a nominal diameter of 0.893 inches. It holds a tolerance of 0.0002 inches and features a 10 microfinish surface, both of which are standard requirements for Class ZZ Plus dimensional inspection tools. Every unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for use in calibrated measurement environments. Machinists, quality control technicians, and tool room personnel use this gage to verify hole size compliance against ASME B89.1 standards.

This plug gage is used in production and inspection settings where hole diameter verification is required before assembly or final inspection. It is appropriate for go inspection applications and can also be used to set and verify micrometers, verniers, and other comparative measuring devices. The 2.0-inch overall length provides a practical handle-to-gage ratio for single-hand operation in typical bench or floor inspection tasks. Suitable for light manufacturing, job shop, and quality lab environments.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for precise dimensional verification
• 10 microfinish surface finish reduces wear and improves gage life
• Tool steel construction for hardness and dimensional stability
• Includes Certificate of Accuracy with NIST traceability
• Meets ASME B89.1 dimensional gage standards
• Compatible with go inspection applications and use as a setting master for measuring devices

Compatibility

Designed for go inspection of holes with a nominal diameter of 0.893 inches. Also suitable for setting micrometers, verniers, and other measuring devices requiring a traceable reference standard at this diameter.

Installation Notes

This gage is handled and used by quality control technicians and machinists; no power source or mechanical installation is required. Store the gage in its protective case when not in use to prevent surface damage or corrosion. Do not force the gage into an undersized hole, as this will damage the gage surface and compromise accuracy. Periodic recalibration against a NIST-traceable standard is recommended to maintain measurement integrity over time.