Vermont Gage 111321450 Class Zz Plus Plug Gage 0.2145 in

Product Description

The VERMONT GAGE 111321450 is a Class ZZ Plus plug gage machined to a 0.2145-inch diameter for go inspection of bores, holes, and internal features. Built from tool steel with a 10 microfinish surface coating, this gage delivers the precision needed to verify that a workpiece opening meets its minimum acceptable size. The overall length of 2.0 inches provides comfortable handling during repeated inspection cycles. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming conformance to ASME B89.1 dimensional standards. Machinists, quality technicians, and tool-and-die professionals rely on plug gages like this one for fast, reliable attribute inspection on the shop floor or in the metrology lab.

This plug gage is suited for go inspection tasks in production and quality-control environments. It is also used to set and verify micrometers, verniers, and other measuring devices where a known reference diameter is required. The 0.2145-inch size fits applications involving small-diameter bores in precision machined components. The 10 microfinish surface finish minimizes wear on the gage and the workpiece during routine contact checks, making it appropriate for both high-volume production inspection and bench-level calibration work.

Key Features

• 0.2145-inch diameter ground to a Class ZZ Plus tolerance of plus or minus 0.0002 inches
• Tool steel construction for durability and resistance to wear during repeated use
• 10 microfinish surface coating for smooth contact and minimal workpiece marking
• Overall length of 2.0 inches for easy single-hand operation
• Includes Certificate of Accuracy with NIST traceability
• Manufactured to ASME B89.1 standards for dimensional gaging

Compatibility

Designed for go inspection of 0.2145-inch diameter bores and as a reference standard for setting micrometers, verniers, and other hand measuring instruments in precision machining and quality-assurance applications.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no permanent installation is required. Before use, clean the gage and the workpiece bore with a lint-free cloth to remove chips, oil, and debris that could affect the reading. Apply light, consistent hand pressure when inserting the gage into a bore — never force it, as forcing can damage the gage land or alter calibration. Store the gage in its protective case away from temperature extremes to maintain dimensional stability between uses.