Vermont Gage 111145800 Class Zz Plus Plug Gage 0.458 in

Product Description

The VERMONT GAGE 111145800 is a Class ZZ Plus plug gage designed for precise go inspection of bored, drilled, and reamed holes. Manufactured from tool steel with a 10 microfinish surface, this plug gage measures holes at a nominal diameter of 0.458 inches with a tolerance of 0.0002 inches. At an overall length of 2.0 inches, the gage is sized for easy handling in standard inspection workflows. Each unit ships with a Certificate of Accuracy backed by NIST traceability, confirming dimensional compliance to ASME B89.1 standards. Machinists, quality technicians, and tool room personnel rely on this gage type for fast, repeatable pass/fail hole verification.

Class ZZ Plus plug gages are used in production inspection environments where hole size must be verified against a specified go limit. Typical applications include checking machined bores in metal and plastic components, calibrating and verifying the accuracy of micrometers, verniers, and other measuring devices, and supporting in-process quality control on CNC and manual machining operations. This gage suits both job shop and production floor use in industries requiring dimensional traceability.

Key Features

• Class ZZ Plus tolerance rating at 0.0002 inches for reliable go inspection
• 10 microfinish surface finish for smooth, consistent gage entry
• Tool steel construction for durability and wear resistance
• Includes Certificate of Accuracy with NIST traceability
• Compliant with ASME B89.1 dimensional standards
• Overall length of 2.0 inches for practical bench and floor use

Compatibility

Designed for go inspection of holes at 0.458 inches nominal diameter; also suitable for setting and verifying micrometers, verniers, and other measuring devices per the stated application data.

Installation Notes

Plug gages are handled and used by quality technicians and machinists and require no permanent installation. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean the gage and the workpiece bore before measurement to avoid false readings caused by chips or debris. Handle with lint-free gloves where possible to minimize thermal growth from hand contact, which can affect readings at tight tolerances.