Vermont Gage 112212900 Class Zz Minus Plug Pin Gage 12.90mm

Product Description

The VERMONT GAGE 112212900 is a Class ZZ minus plug pin gage machined to a 12.90 mm diameter with a tolerance of 0.00508 mm. It is used to perform NoGo inspection checks on bores, holes, and machined features where dimensional accuracy is critical. The steel construction provides durability and consistent dimensional stability under normal shop conditions. Each unit ships with a Certificate of Accuracy backed by NIST traceability, making it suitable for use in quality-controlled environments. Metrology technicians, toolroom machinists, and quality inspectors are the primary users of this type of gage.

This plug pin gage is intended for NoGo inspection applications in manufacturing and machining environments. It is also used to calibrate and verify the accuracy of micrometers, verniers, and other precision measuring devices. The 12.90 mm diameter targets bore and hole features at that nominal size in both production and inspection settings. Its compact 2-inch overall length makes it easy to handle during repetitive inspection cycles on the shop floor or in a dedicated quality lab.

Key Features

• Class ZZ minus tolerance specification at 0.00508 mm for NoGo inspection use
• 12.90 mm diameter for direct bore and hole verification
• Steel construction for dimensional stability and wear resistance
• Includes Certificate of Accuracy with NIST traceability
• Compatible with micrometers, verniers, and other precision measuring devices as a reference standard
• Compact 2-inch overall length for easy single-hand handling

Compatibility

Designed for use in NoGo inspection routines and as a reference standard for setting micrometers, verniers, and other precision measuring devices requiring a 12.90 mm reference diameter.

Installation Notes

Plug pin gages are handled and used by quality technicians and toolroom machinists. No power source is required, but gages should be stored in a protective case away from moisture and temperature extremes to maintain dimensional integrity. Clean the gage and the bore or measuring device contact surfaces before each use to prevent false readings caused by debris or contaminants. Do not force the gage into a bore; light hand pressure is the correct technique for all pin gage inspections.