Vermont Gage 112204280 Class Zz Minus Plug Pin Gage 4.28mm

Product Description

The VERMONT GAGE 112204280 is a Class ZZ Minus plug pin gage machined from steel and used to verify hole diameter in precision inspection applications. At 4.28 mm in diameter with a tolerance of 0.00508 mm, this gage is configured as a NoGo member, confirming that a hole has not exceeded its maximum allowable size. The overall length is 2 inches, making it well suited for benchtop and inline inspection tasks. Each unit ships with a Certificate of Accuracy traceable to NIST standards, supporting documented quality control processes. Machinists, quality technicians, and tool-room professionals rely on this type of gage for fast, repeatable attribute inspection.

This plug pin gage is used in manufacturing and machine shop environments where precise hole diameter verification is required. Typical applications include NoGo inspection of drilled, reamed, or bored holes, as well as calibration and verification of set micrometers, verniers, and other measuring devices. Its compact size and steel construction make it practical for both production floor and metrology lab use in light and heavy manufacturing settings.

Key Features

• Class ZZ Minus configuration for NoGo hole diameter inspection
• 4.28 mm measurement diameter with 0.00508 mm tolerance
• 10 microfinish surface coating for accurate, repeatable contact
• Steel construction for durability and dimensional stability
• Includes Certificate of Accuracy with NIST traceability
• Overall length of 2 inches suits standard benchtop inspection setups

Compatibility

Designed for use as a NoGo inspection gage and for setting micrometers, verniers, and other measuring devices requiring a 4.28 mm reference diameter.

Installation Notes

Plug pin gages are handled and used by quality technicians and machinists following standard metrology practices. Keep the gage clean and lightly oiled when not in use to prevent corrosion. Do not force the gage into a hole; apply light, steady hand pressure only. Store in the supplied case or protective sleeve to maintain surface finish and dimensional integrity.