Vermont Gage 112405230 Class Zz Minus Plug Pin Gage 5.23mm

Product Description

The VERMONT GAGE 112405230 is a Class ZZ Minus plug pin gage machined from steel and used to perform NoGo inspection of bored holes, drilled passages, and precision-machined features. It measures a nominal diameter of 5.23 mm with a tolerance of 0.00508 mm, making it suitable for close-tolerance quality control work in production and toolroom environments. The gage is 2 inches in overall length. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for ISO and AS9100 quality systems. Machinists, quality technicians, and tool-and-die personnel are the primary users of this type of gage.

This pin gage is intended for NoGo inspection applications where a hole or bore must not exceed a specified maximum diameter. It is also used to set micrometers, verniers, and other measuring devices to a known reference diameter. Typical installation scenarios include incoming inspection, in-process quality checks on machined components, and calibration reference tasks in toolroom or metrology lab settings. The 10 microfinish surface coating supports accurate, repeatable contact with the workpiece surface.

Key Features

• Class ZZ Minus tolerance class: 0.00508 mm tolerance for close-tolerance NoGo inspection
• 5.23 mm nominal measurement diameter
• Steel construction with 10 microfinish surface coating for consistent gauge contact
• Includes Certificate of Accuracy with NIST traceability for quality system compliance
• Suitable for setting micrometers, verniers, and other measuring instruments to a reference diameter
• Compact 2 inch overall length for easy handling in confined inspection areas

Compatibility

Designed for use as a NoGo inspection gage and as a setting reference for micrometers, verniers, and other measuring devices requiring a 5.23 mm diameter reference.

Installation Notes

Pin gages are handled by quality technicians and machinists and require no mechanical installation. Store the gage in its case when not in use to protect the finished surface from corrosion and contact damage. Clean the gage and the workpiece bore before use to prevent debris from affecting the measurement reading. Do not force the gage into a bore; a NoGo gage should not enter a correctly sized hole under hand pressure alone.