Vermont Gage 111191100 Class Zz Plus Plug Gage 0.911 in

Product Description

The VERMONT GAGE 111191100 is a Class ZZ Plus plug gage ground to a 0.911-inch diameter for precise go inspection work. Built from tool steel with a 10 microinch surface finish, it holds a tolerance of 0.0002 inches, meeting the dimensional accuracy requirements of ASME B89.1. At 2.0 inches overall length, the gage fits standard handle setups used by quality technicians and machinists on the shop floor. Each unit ships with a Certificate of Accuracy backed by NIST traceability, giving inspectors the documentation needed for regulated environments and calibration records.

This plug gage is suited for go inspection of bored holes, reamed passages, and machined features in both production and tool room settings. It is also used to calibrate and set micrometers, verniers, and other comparative measuring devices where a known reference diameter is required. Typical users include quality control inspectors, machinists, and metrology lab technicians working in manufacturing environments that require traceable dimensional verification.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for high-accuracy go inspection
• 10 microinch surface finish for consistent, repeatable contact measurement
• Tool steel construction for wear resistance and long service life
• Meets ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for documentation-driven quality programs
• Useful as a setting reference for micrometers, verniers, and other measuring devices

Compatibility

Designed for use as a go inspection gage and as a setting reference for micrometers, verniers, and other measuring devices requiring a 0.911-inch reference diameter.

Installation Notes

Plug gages are handled and used by trained quality technicians or machinists familiar with ASME B89.1 inspection practices. Clean the gage and the feature being inspected before use to prevent debris from causing false readings or surface damage. Store the gage in its protective case when not in use to preserve the ground surface finish. Do not force the gage into an undersize feature, as this will damage the gage surface and invalidate its calibration status.