Vermont Gage 111188600 Class Zz Plus Plug Gage 0.886 in

Product Description

The VERMONT GAGE 111188600 is a Class ZZ Plus cylindrical plug gage designed for precise go inspection of bored, drilled, and reamed holes. It measures a nominal diameter of 0.886 inches with a tolerance of 0.0002 inches and a 10 microinch surface finish, meeting the dimensional accuracy demands of quality control environments. Manufactured from tool steel, this gage provides the hardness and wear resistance needed for repetitive inspection use. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documentation requirements in ISO and AS9100 quality systems. Licensed metrologists, machinist inspectors, and QC technicians are the primary users.

This plug gage is suited for production floor and inspection lab use wherever hole diameter verification is required at the 0.886-inch nominal size. Typical applications include go-type attribute inspection of machined components in aerospace, automotive, and general manufacturing. It is also used to verify and set micrometers, verniers, and other variable measuring devices to a known standard. The Class ZZ Plus tolerance class makes it appropriate for inspection-grade work rather than workshop-grade gauging.

Key Features

• Nominal measurement diameter of 0.886 inches for go inspection
• Class ZZ Plus tolerance of 0.0002 inches per ASME B89.1
• 10 microinch surface finish for consistent, repeatable contact
• Tool steel construction for hardness and long service life
• Includes Certificate of Accuracy with NIST traceability
• Suitable for setting micrometers, verniers, and other measuring devices

Compatibility

Designed for go-type attribute inspection of machined holes at 0.886 inches nominal diameter. Also compatible as a setting standard for micrometers, verniers, and other measuring devices per the manufacturer application specification.

Installation Notes

Plug gages should be handled by trained inspection personnel. Store the gage in its protective case when not in use to prevent damage to the lapped surface. Clean the gage and the workpiece bore with a lint-free cloth before use to remove chips, oils, or debris that could affect the measurement. Never force the gage into a bore; excessive insertion force can damage both the gage and the workpiece.