Vermont Gage 112403330 Class Zz Minus Plug Pin Gage

Product Description

The VERMONT GAGE 112403330 is a Class ZZ Minus plug pin gage used to perform NoGo inspection of precision bores and holes. It measures 3.33 mm in diameter with a tolerance of 0.00508 mm, making it suitable for high-accuracy dimensional verification. The steel construction and 10 microfinish surface coating ensure consistent, repeatable contact during measurement. Each unit ships with a Certificate of Accuracy that carries NIST traceability, supporting documentation requirements in quality-controlled environments. Machinists, quality technicians, and metrology lab personnel use this gage as part of standard go/nogo gauging procedures or alongside micrometers, verniers, and other precision measuring devices.

This pin gage is intended for NoGo inspection applications where confirming that a bore does not exceed the maximum allowable size is required. It is also suited for setting and calibrating micrometers, verniers, and similar measuring instruments. The 3.33 mm diameter and overall length of 2 inches make it a practical hand-held reference tool for bench inspection in manufacturing, machining, and quality assurance environments. The Class ZZ designation indicates a working-grade gage appropriate for production inspection rather than master or reference standards work.

Key Features

• 3.33 mm measurement diameter with 0.00508 mm tolerance for precise NoGo inspection
• Class ZZ Minus classification — suitable for production-level go/nogo gauging
• 10 microfinish surface coating for consistent, low-distortion contact
• Steel construction for durability and dimensional stability
• Includes Certificate of Accuracy with NIST traceability for quality documentation
• 2-inch overall length for comfortable single-hand use during bench inspection

Compatibility

Designed for use in NoGo bore inspection applications and for setting micrometers, verniers, and other precision measuring devices requiring a 3.33 mm diameter reference standard.

Installation Notes

This gage is handled by quality technicians and metrology personnel and does not require mechanical installation. Store the gage in its protective case when not in use to prevent nicks or surface damage that could affect accuracy. Clean contact surfaces with a lint-free cloth before and after use. Do not force the gage into a bore — proper NoGo technique requires that the gage should not pass through the feature being inspected.