Vermont Gage 112204180 Class Zz Minus Plug Pin Gage 4.18mm

Product Description

The VERMONT GAGE 112204180 is a Class ZZ minus tolerance plug pin gage ground to a 4.18 mm diameter with a tolerance of 0.00508 mm. This single-ended steel pin gage is used to verify that a hole or bore does not exceed its maximum allowable size, functioning as a NoGo member in a go/nogo inspection routine. Manufactured from steel with a 10 microfinish surface coating, it measures 2 inches in overall length and ships with a Certificate of Accuracy traceable to NIST standards. Machinists, quality control technicians, and toolroom personnel use this gage to hold tight dimensional conformance on precision-machined components.

This pin gage is suited for dimensional inspection tasks in manufacturing, toolroom, and quality assurance environments. It is applied in NoGo inspection routines to reject bores or holes that have been machined oversize. It is also compatible with use alongside set micrometers, vernier calipers, and other measuring devices that require a traceable reference standard. The compact 2-inch overall length fits standard gage holders and is practical for bench inspection or in-process checks on production floors.

Key Features

• Class ZZ minus tolerance for NoGo inspection applications
• 4.18 mm measurement diameter with 0.00508 mm tolerance
• 10 microfinish surface coating for consistent contact and wear resistance
• Steel construction for dimensional stability under normal shop conditions
• Includes Certificate of Accuracy with NIST traceability
• Compact 2-inch overall length fits standard gage holders

Compatibility

Designed for use in NoGo inspection routines and as a reference standard alongside set micrometers, verniers, and other precision measuring devices requiring a traceable 4.18 mm diameter pin gage.

Installation Notes

This gage is handled and used by quality technicians and machinists in inspection environments. Store the pin gage in its protective case when not in use to prevent surface damage that could affect accuracy. Clean contact surfaces before each use and avoid dropping or forcing the pin into bores, as this can alter the ground diameter. Periodic recalibration against a NIST-traceable standard is recommended to maintain measurement integrity over time.