Vermont Gage 111186500 Class Zz Plus Plug Gage 0.865 in

Product Description

The VERMONT GAGE 111186500 is a Class ZZ Plus plug gage machined from tool steel for dimensional go inspection of bored holes, reamed openings, and precision-machined features measuring 0.865 inches in diameter. It carries a tolerance of 0.0002 inches and a 10 microinch surface finish, meeting ASME B89.1 standards for fixed-limit plain plug gages. Each unit ships with a Certificate of Accuracy that includes NIST traceability, supporting quality-control documentation requirements in manufacturing, calibration labs, and inspection environments. Machinists, quality technicians, and metrology professionals use this gage to verify that a bore falls within acceptable dimensional limits before assembly.

This plug gage is suited for go inspection on production floors, tool rooms, and calibration benches where tight dimensional verification is required. It is also used to set and verify micrometers, verniers, and other measuring devices in both shop and lab settings. The 0.865-inch diameter and 2.0-inch overall length make it compatible with standard gage handle systems. Typical applications include inspection of machined bores in light manufacturing, aerospace component verification, and general precision metrology work where ASME B89.1 conformance is required.

Key Features

• Class ZZ Plus tolerance of 0.0002 inches for precise go inspection
• 10 microinch surface finish for accurate, repeatable contact with bore surfaces
• Tool steel construction for durability and dimensional stability under shop conditions
• Conforms to ASME B89.1 fixed-limit plain plug gage standard
• Includes Certificate of Accuracy with NIST traceability for quality documentation
• Compatible with standard plug gage handles for ergonomic handling

Compatibility

Designed for use with standard plug gage handle systems and suitable for setting micrometers, verniers, and other measuring devices per the manufacturer application data. No specific OEM equipment compatibility is stated in the product data.

Installation Notes

This gage is handled and used by quality technicians and machinists — no power tools or utilities need to be shut down prior to use. Keep the gage clean and lightly oiled when not in use to prevent corrosion and maintain dimensional accuracy. Do not force the gage into undersized bores, as this can damage the gage surface and invalidate the NIST-traceable calibration. Store in a protective case away from temperature extremes to preserve dimensional stability.