Vermont Gage 112404870 Class Zz Minus Plug Pin Gage 4.87mm

Product Description

The VERMONT GAGE 112404870 is a Class ZZ Minus plug pin gage machined from steel and used to verify bore and hole diameters in precision inspection work. At 4.87 mm in diameter with a tolerance of 0.00508 mm, this pin gage is purpose-built for NoGo inspection applications where confirming an upper-limit rejection condition is required. The overall length is 2 inches. Each unit ships with a Certificate of Accuracy that carries NIST traceability, supporting quality documentation requirements in calibrated inspection environments. The 10 microfinish surface coating protects the gage surface and helps maintain dimensional stability over repeated use cycles.

This pin gage is suited for dimensional inspection in manufacturing, machine shops, and quality control labs. It is used with set micrometers, verniers, and other precision measuring devices to validate hole diameters against a NoGo tolerance condition. Applications span general metalworking, close-tolerance machining, and incoming or in-process inspection where repeatable, traceable go/no-go verification is required. This gage is appropriate for both production floor checks and bench-level metrology work where a documented NIST-traceable reference is needed.

Key Features

• Class ZZ Minus tolerance classification for NoGo inspection of bore and hole diameters
• 4.87 mm measurement diameter with 0.00508 mm tolerance
• Steel construction with 10 microfinish surface coating for durability and dimensional stability
• Includes Certificate of Accuracy with NIST traceability for quality documentation
• 2 inch overall length suits standard pin gage handles and inspection fixtures

Compatibility

Designed for use with standard pin gage handles, set micrometers, verniers, and other precision measuring devices requiring a 4.87 mm NoGo reference pin.

Installation Notes

Pin gages are handled and used by quality technicians and precision machinists. Always clean the gage and the bore being inspected before use to prevent debris from affecting measurement results. Store pin gages in a protective case away from tooling that could cause nicks or surface damage. Do not force the pin into a bore; excessive insertion force indicates the hole is undersized and can damage the gage surface finish.