Vermont Gage 112407390 Class Zz Minus Plug Pin Gage 7.39 Mm

Product Description

The VERMONT GAGE 112407390 is a Class ZZ minus plug pin gage machined from steel and used to verify that a hole or bore does not exceed its maximum allowable size in NoGo inspection applications. With a measurement diameter of 7.39 mm and a tolerance of 0.00508 mm, this gage delivers the close dimensional control required for precision quality checks on production floors and in metrology labs. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming the gage meets Class ZZ standards. It is handled and installed by machinists, quality technicians, and metrology personnel.

This plug pin gage is suited for NoGo bore inspection in manufacturing and quality-assurance environments. It is also used when setting or verifying micrometers, verniers, and other measuring devices that require a traceable reference. The 2-inch overall length provides a practical hand-feel for repetitive inspection cycles on small-diameter bores in the 7.39 mm range. Its compact size and light weight make it easy to deploy at inspection stations or in field calibration kits.

Key Features

• Class ZZ minus tolerance specification for NoGo bore inspection
• 7.39 mm measurement diameter with 0.00508 mm tolerance
• Steel construction for durability and dimensional stability
• 10 microfinish surface coating for consistent contact and reduced wear
• Includes Certificate of Accuracy with NIST traceability
• 2-inch overall length for comfortable single-hand use

Compatibility

Designed for NoGo inspection of bores at 7.39 mm nominal diameter and for use as a setting reference with micrometers, verniers, and other precision measuring devices requiring a Class ZZ traceable standard.

Installation Notes

Plug pin gages are handled by quality technicians and machinists and require no permanent installation. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the steel surface. Never force the gage into a bore; hand pressure only is appropriate for NoGo checks. Store in the provided case or a padded holder to protect the precision-ground surface from nicks and wear.