Vermont Gage 111150700 Class Zz Plus Plug Gage 0.507 in

Product Description

The VERMONT GAGE 111150700 is a Class ZZ Plus plug gage designed for precision go inspection of bored, reamed, and machined holes. It measures a nominal diameter of 0.507 inches with a tolerance of 0.0002 inches, making it suitable for tight-tolerance inspection work on the shop floor or in a metrology lab. Constructed from tool steel and finished to a 10 microinch surface finish, this gage delivers the dimensional consistency required for repeatable results. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting quality documentation requirements. Machinists, toolroom technicians, and quality control inspectors are the primary users of this gage.

This plug gage is used in go inspection applications to verify that a hole or bore falls within the specified lower tolerance limit. It is also a reference standard for setting micrometers, verniers, and other comparative measuring devices. Typical applications include production inspection of machined components in manufacturing environments where hole diameter conformance must be confirmed before assembly. The 0.507-inch diameter covers a common bore size encountered in general precision machining and toolroom work. Conforms to ASME B89.1 standards, ensuring it meets recognized dimensional measurement requirements for Class ZZ Plus gages.

Key Features

• 0.507 inch nominal diameter with 0.0002 inch tolerance for tight-tolerance go inspection
• 10 microinch surface finish for accurate, low-wear contact with the bore surface
• Tool steel construction for durability and dimensional stability under repeated use
• Includes Certificate of Accuracy with NIST traceability for quality system documentation
• Conforms to ASME B89.1 dimensional standards for plug gages
• Overall length of 2.0 inches for comfortable handling in standard inspection setups

Compatibility

Designed as an OEM-style go plug gage for use with standard gage handle sets and as a setting reference for micrometers, verniers, and other measuring devices in applications requiring a 0.507 inch diameter reference.

Installation Notes

Plug gages are handled and used by quality control technicians and toolroom machinists; no installation in the traditional sense is required. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean contact surfaces before each use with a lint-free cloth to remove oils and debris that can affect measurement accuracy. Handle with care to avoid dropping, which can alter the gage geometry and invalidate the Certificate of Accuracy.