Vermont Gage 111199200 Class Zz Plus Plug Gage 0.992 in

Product Description

The VERMONT GAGE 111199200 is a Class ZZ Plus plug gage machined from tool steel for dimensional go inspection of bored or reamed holes. It measures a nominal diameter of 0.992 inches with a tolerance of 0.0002 inches and a 10 microinch surface finish, meeting the precision requirements of ASME B89.1. The gage ships with a Certificate of Accuracy with NIST traceability, giving calibration records an auditable baseline. Machinists, quality technicians, and metrology lab personnel use this tool to confirm that a hole falls within its specified go limit before a part moves to the next stage of production or assembly.

This plug gage is suited for go inspection tasks in manufacturing and quality-control environments where tight bore tolerances must be verified. Typical applications include checking holes produced by drilling, boring, or reaming operations in production machining, tool-and-die, and precision fabrication shops. It is also appropriate for setting and verifying micrometers, verniers, and other measuring devices that require a traceable reference standard. The gage is sized for use in both manual and bench inspection routines where a quick, reliable pass-or-reject check is needed.

Key Features

• 0.992-inch nominal diameter with 0.0002-inch Class ZZ Plus tolerance per ASME B89.1
• 10 microinch surface finish for accurate, repeatable contact with bore surfaces
• Tool steel construction for wear resistance during repeated inspection use
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Suitable for go inspection and as a reference standard for setting measuring instruments

Compatibility

Designed for go inspection of holes nominally sized at 0.992 inches and for use as a reference standard with micrometers, verniers, and other measuring devices that accept a traceable plug reference.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no power source is required. Keep the gage clean and lightly oiled when not in use to prevent corrosion and wear on the tool steel surfaces. Never force the gage into a bore; if resistance is encountered, the feature is undersize and the gage should be withdrawn to avoid damage. Store in the provided case or a protective sleeve to maintain the calibrated surface finish and dimensional integrity.