Vermont Gage 112408250 Class Zz Minus Plug Pin Gage 8.25 Mm

Product Description

The VERMONT GAGE 112408250 is a Class ZZ minus plug pin gage designed for precise dimensional inspection in tool rooms, quality labs, and production environments. It measures 8.25 mm in diameter and holds a tolerance of 0.00508 mm, making it suitable for NoGo go/no-go gauging applications where tight dimensional verification is required. Constructed from steel with a 10 microfinish surface coating, this pin gage delivers consistent, repeatable measurements. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting compliance with documented quality management systems. Metrology technicians, machinists, and quality control inspectors are the primary users of this type of instrument.

This pin gage is used in NoGo inspection routines to verify that a bore, hole, or feature does not exceed its maximum material condition. It is also suited for setting micrometers, verniers, and other comparative measuring devices that require a known reference diameter. At 8.25 mm, this gage addresses a common metric hole size found in precision machined components across aerospace, automotive, and general manufacturing. The 2-inch overall length provides adequate handling clearance for most bench and in-fixture inspection tasks.

Key Features

• Class ZZ minus tolerance of 0.00508 mm for NoGo inspection use
• 8.25 mm diameter for direct metric hole gauging
• Steel construction with 10 microfinish surface coating for wear resistance and measurement integrity
• Includes Certificate of Accuracy with NIST traceability for documented quality systems
• 2-inch overall length for comfortable handling in bench and fixture environments
• Compatible with micrometer and vernier setting applications

Compatibility

Designed for use in NoGo inspection routines and as a setting reference for micrometers, verniers, and other measuring devices requiring a calibrated 8.25 mm diameter reference standard.

Installation Notes

Pin gages are handled and stored by quality technicians and metrology personnel. Before use, clean the gage and the mating feature with a lint-free cloth to remove oils, chips, or debris that could affect measurement accuracy. Apply light gage oil or corrosion inhibitor for storage to protect the steel surface. Never force a pin gage into a feature; if resistance is felt, the part is a no-go condition and forcing can damage the gage or the workpiece.