Vermont Gage 111425250 Class Zz Minus Plug Pin Gage 0.2525 in

Product Description

The VERMONT GAGE 111425250 is a Class ZZ Minus plug pin gage machined from steel and used to perform NoGo inspection of precision bored, reamed, or drilled holes. The gage measures 0.2525 inches in diameter with a tolerance of 0.0002 inches and an overall length of 2 inches. Each unit ships with a Certificate of Accuracy that carries NIST traceability, confirming dimensional compliance at the point of manufacture. Machinists, quality technicians, and tool-room professionals use this type of gage to verify that a hole does not exceed its maximum material condition limit, making it an essential part of go/nogo functional inspection routines.

This plug pin gage is suited for inspection work in machine shops, manufacturing facilities, and quality control environments. It is used with micrometers, vernier calipers, and other measuring devices to calibrate or verify reference dimensions. The Class ZZ designation places it in the commercial tolerance class, appropriate for production-floor inspection rather than laboratory-grade master gage work. The 10 microfinish surface coating supports smooth, consistent insertion into close-tolerance features without damaging the workpiece bore.

Key Features

• Class ZZ Minus tolerance classification for NoGo inspection applications
• 0.2525 inch measurement diameter with 0.0002 inch tolerance
• Steel construction with 10 microfinish surface coating
• Overall length of 2 inches for standard hand-held use
• Includes Certificate of Accuracy with NIST traceability
• Compatible for use with micrometers, verniers, and other measuring devices

Compatibility

Designed for use in NoGo hole inspection routines and as a reference standard when setting micrometers, verniers, and other measuring devices requiring a 0.2525 inch diameter reference.

Installation Notes

This gage is handled by quality technicians or machinists and requires no permanent installation. Store the gage in its protective case when not in use to prevent surface damage that could affect dimensional accuracy. Do not force the gage into a hole; if resistance is encountered during a NoGo check, this indicates the hole is within tolerance. Clean the gage surface before each use to remove chips, oils, or debris that could introduce measurement error.