Vermont Gage 112100720 Class Zz Plus Plug Gage 0.72mm

Product Description

The VERMONT GAGE 112100720 is a Class ZZ Plus plug gage machined from tool steel for precision dimensional inspection work. Sized at 0.72 mm diameter with a tolerance of 0.00508 mm, it delivers the tight accuracy required for go-type inspection of small bores, holes, and precision-machined features. The overall length is 2.0000 inches, making it easy to handle with standard gage fixtures or by hand. A 10 microfinish surface treatment ensures consistent contact geometry during measurement. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting the documentation requirements of quality management systems operating under ASME B89.1 standards. Machinists, quality technicians, and metrologists use this gage as a direct go-inspection reference tool.

This plug gage is intended for go-type inspection applications in precision manufacturing, tool and die, aerospace, and general metrology environments. It is sized for use with small-bore features where sub-millimeter diameter verification is required. The gage is also suited for setting and verifying micrometers, verniers, and other measuring devices that require a traceable reference standard at this diameter. It is appropriate for use in shop-floor inspection stations and metrology labs alike.

Key Features

• Class ZZ Plus tolerance standard for accurate go-type bore inspection
• 0.72 mm diameter with 0.00508 mm tolerance for sub-millimeter precision
• 10 microfinish surface for repeatable, consistent contact during gauging
• Tool steel construction for hardness and dimensional stability
• Meets ASME B89.1 standards for plain cylindrical gages
• Includes Certificate of Accuracy with NIST traceability for quality system compliance

Compatibility

Designed for go inspection of bores and holes at 0.72 mm diameter, and for use as a reference standard when setting micrometers, verniers, and other precision measuring devices requiring a traceable sub-millimeter cylindrical reference.

Installation Notes

This gage is handled and used by quality technicians and metrologists; no mechanical installation is required. Store the gage in its protective case when not in use to prevent surface damage or contamination that could affect measurement accuracy. Clean the gage and the part bore with a lint-free cloth before each measurement to remove debris that could affect contact and readings. Follow the inspection procedures and handling guidelines outlined in ASME B89.1 to maintain calibration integrity.