Vermont Gage 112405250 Class Zz Minus Plug Pin Gage 5.25 Mm

Product Description

The VERMONT GAGE 112405250 is a Class ZZ Minus plug pin gage designed for precision dimensional inspection in machining and metrology applications. The gage measures hole diameters at 5.25 mm and carries a tolerance of 0.00508 mm, making it suitable for NoGo inspection work where tight dimensional verification is required. Machined from steel with a 10 microfinish surface coating, this pin gage delivers consistent, repeatable measurement performance. Each unit ships with a Certificate of Accuracy backed by NIST traceability, supporting quality control documentation requirements. Overall length is 2 inches. Licensed metrology technicians, machinists, and quality control professionals install and use this tool in calibration and inspection workflows.

This pin gage is used in NoGo inspection routines to verify that a hole or bore does not exceed its maximum allowable diameter. It is also suited for setting micrometers, verniers, and other measuring devices requiring a known reference standard. Typical applications include incoming inspection, in-process quality checks, and final inspection in precision machining, manufacturing, and tool-and-die environments. The Class ZZ classification indicates a gage made to standard commercial tolerance grades appropriate for general-purpose inspection work.

Key Features

• 5.25 mm measurement diameter for precise bore and hole inspection
• 0.00508 mm tolerance meets Class ZZ Minus gage standards
• 10 microfinish surface coating for consistent contact and reduced wear
• Steel construction provides durability in shop and lab environments
• Includes Certificate of Accuracy with NIST traceability for documentation and compliance
• Suitable for setting micrometers, verniers, and other reference-dependent measuring devices

Compatibility

Designed for use in NoGo inspection applications and as a reference standard for setting micrometers, verniers, and other precision measuring devices requiring a 5.25 mm diameter reference.

Installation Notes

Pin gages are handled and used by metrology technicians, quality control inspectors, and machinists. Keep the gage surface clean and lightly oiled when not in use to prevent corrosion. Do not force the gage into a bore; apply only light, consistent hand pressure to avoid scoring the gage or the workpiece. Store in a protective case away from abrasive materials and temperature extremes to maintain calibration integrity.