Vermont Gage 111439550 Class Zz Minus Plug Pin Gage

Product Description

The VERMONT GAGE 111439550 is a Class ZZ Minus plug pin gage machined from steel and used to perform NoGo inspection checks on bored holes, drilled passages, and precision-machined features. Measuring 0.3955 inches in diameter with a tolerance of 0.0002 inches, this pin gage delivers the tight dimensional control required for production and quality-assurance work. The 10 microfinish surface finish on the gage pin reduces wear and ensures repeatable contact with the workpiece. A Certificate of Accuracy with NIST Traceability is included, supporting calibration documentation requirements in regulated manufacturing and quality environments. Overall length is 2 inches.

This pin gage is suited for dimensional inspection in machine shops, toolrooms, and production floor QC stations. The Class ZZ Minus designation makes it appropriate for NoGo functional checks, confirming that a feature does not exceed its maximum material condition. It is also used to set and verify micrometers, verniers, and other measuring devices where a known reference diameter is needed. Typical users include machinists, quality technicians, and metrology lab personnel working to close tolerances in general-purpose manufacturing environments.

Key Features

• Class ZZ Minus tolerance rating for NoGo inspection applications
• 0.3955 inch diameter with 0.0002 inch tolerance for precise dimensional verification
• 10 microfinish surface finish for consistent, low-wear contact
• Steel construction for durability in production and toolroom use
• Includes Certificate of Accuracy with NIST Traceability for calibration records
• 2 inch overall length for easy single-hand handling and gauge fixture use

Compatibility

Designed for use in NoGo inspection routines and as a reference standard for setting micrometers, verniers, and other measuring devices requiring a 0.3955 inch diameter reference.

Installation Notes

Pin gages are handled and stored by metrology or quality technicians, not typically installed in a mechanical system. Handle with clean, dry hands or lint-free gloves to prevent corrosion from skin contact. Store in the original case or a protected holder to avoid surface damage that would affect gage accuracy. Verify the gage against calibration records before use in critical inspection applications.