Vermont Gage 112404090 Class Zz Minus Plug Pin Gage 4.09mm

Product Description

The VERMONT GAGE 112404090 is a Class ZZ Minus plug pin gage machined from steel and used to verify bore and hole dimensions in precision inspection work. The gage measures 4.09 mm in diameter and holds a tolerance of 0.00508 mm, making it suitable for NoGo inspection applications where tight dimensional control is required. At 2 inches in overall length, it fits standard pin gage handles and is handled by quality control technicians, machinists, and metrology lab personnel. Each unit ships with a Certificate of Accuracy traceable to NIST standards.

This plug pin gage is intended for NoGo inspection of bored holes, drilled openings, and machined features at 4.09 mm nominal diameter. It is also used to set and verify micrometers, verniers, and other measuring devices requiring a known reference diameter. Typical applications include incoming inspection, in-process quality control, and final part verification in manufacturing and machine shop environments. The Class ZZ tolerance designation makes this gage appropriate for general-purpose inspection rather than high-precision master gage applications.

Key Features

• Class ZZ Minus tolerance designation for NoGo inspection use
• 4.09 mm diameter with 0.00508 mm tolerance for precise dimensional verification
• Steel construction for durability in production inspection environments
• 10 microfinish surface coating for consistent gage contact and wear resistance
• Includes Certificate of Accuracy with NIST traceability
• 2 inches overall length, compatible with standard pin gage handles

Compatibility

Designed for use in NoGo inspection applications and as a reference standard for setting micrometers, verniers, and other measuring devices requiring a 4.09 mm diameter reference.

Installation Notes

Pin gages should be handled with clean, lint-free gloves or clean dry hands to prevent corrosion from skin oils. Insert the gage by hand only - never force it into a bore, as forcing can damage both the gage and the workpiece. Store the gage in its protective case when not in use to preserve the surface finish and dimensional integrity. Calibration intervals should follow your facility quality management system requirements.