Vermont Gage 111151700 Class Zz Plus Plug Gage 0.517 in

Product Description

The VERMONT GAGE 111151700 is a Class ZZ Plus plug gage machined from tool steel and used to perform go inspection on bored, drilled, or reamed holes. The gage measures a nominal diameter of 0.517 inches with a tolerance of 0.0002 inches, and its working surface is finished to a 10 microinch surface finish for consistent, repeatable gauging. Each unit ships with a Certificate of Accuracy that carries full NIST traceability, meeting ASME B89.1 standards. Licensed metrologists, quality technicians, and machinist-level inspectors rely on this type of gage for dimensional verification on the shop floor and in inspection labs.

This plug gage is suited for go-side inspection of features sized at 0.517 inches in diameter across a range of manufacturing and metrology applications. It is also used to set and verify micrometers, verniers, and other measuring devices where a certified reference standard of known diameter is required. Typical environments include production floor QC stations, tool rooms, and calibration labs in metalworking, aerospace, and general manufacturing facilities.

Key Features

• Nominal measurement diameter of 0.517 inches for precise go inspection
• Tolerance of 0.0002 inches per Class ZZ Plus specification
• 10 microinch surface finish for consistent contact and minimal wear on mating surfaces
• Manufactured from tool steel for durability in production and inspection environments
• Conforms to ASME B89.1 dimensional standards
• Includes Certificate of Accuracy with NIST traceability for documented calibration records

Compatibility

Designed for go inspection of holes and bores at 0.517 inches nominal diameter, and suitable for use as a reference standard when setting micrometers, verniers, and other measuring devices.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no installation in the traditional sense is required. Store the gage in its protective case and avoid contact with abrasive surfaces to preserve the 10 microinch finish. Clean the gage and the part feature with a lint-free cloth before gauging to prevent false readings caused by debris or cutting fluid residue. Periodic recalibration against NIST-traceable standards is recommended to maintain accuracy records in compliance with applicable quality management systems.