Vermont Gage 112100680 Class Zz Plus Plug Gage 0.68mm

Product Description

The VERMONT GAGE 112100680 is a Class ZZ Plus plug gage designed for precise go inspection of small-diameter bores and holes. Machined from tool steel and finished to a 10 microfinish surface quality, this gage delivers reliable dimensional verification at a nominal diameter of 0.68 mm with a tolerance of 0.005 mm. It is used by machinists, quality technicians, and metrologists to confirm that a workpiece bore falls within specification. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for documented quality control environments. The overall length is 2.0 inches.

This plug gage is intended for go inspection applications in precision machining and quality assurance settings, including use with micrometers, verniers, and other measuring devices requiring calibrated reference standards. It is suited for small-bore verification tasks in manufacturing environments where tight tolerances and documented traceability are required. The compact form factor accommodates inspection of miniature bores commonly encountered in medical, aerospace, and general precision machining work.

Key Features

• Class ZZ Plus tolerance grade for go inspection of small-diameter bores
• 0.68 mm nominal diameter with 0.005 mm tolerance
• 10 microfinish surface for accurate, repeatable gauging
• Tool steel construction for hardness and wear resistance
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 standards

Compatibility

Designed for go inspection use with micrometers, verniers, and other measuring devices requiring a calibrated plug gage reference at 0.68 mm diameter per ASME B89.1.

Installation Notes

Plug gages should be handled by metrology or quality control personnel following established inspection procedures. Clean the gage and workpiece bore before use to prevent debris from affecting measurement accuracy. Store the gage in its protective case when not in use to preserve the surface finish and dimensional integrity. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece.