Vermont Gage 112106900 Class Zz Plus Plug Gage 6.9 Mm

Product Description

The VERMONT GAGE 112106900 is a Class ZZ Plus plug gage designed for go inspection of bored, reamed, or drilled holes with a nominal diameter of 6.9 mm. Manufactured from tool steel with a 10 microfinish surface coating, it delivers the precision and durability required for production-floor and inspection-room use. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming dimensional compliance to a tolerance of 0.005 mm. The gage measures 2.0 inches overall in length and weighs approximately 0.04 pounds. Dimensional inspectors, machinists, and quality technicians rely on plug gages of this class to verify that machined features fall within specified limits before assemblies advance to the next stage.

This plug gage is suited for go inspection tasks across light manufacturing, precision machining, and metrology environments. It is used alongside set micrometers, verniers, and other measuring devices to verify hole diameters in both low-volume prototype work and high-volume production runs. The 6.9 mm diameter targets a common metric bore size found in mechanical assemblies. Typical users include QC inspectors and CNC machinists performing in-process or final inspection of parts machined to metric standards.

Key Features

• Class ZZ Plus tolerance grade: 0.005 mm tolerance for reliable go inspection results
• Tool steel construction for hardness and resistance to wear during repeated use
• 10 microfinish surface coating for smooth, accurate contact with bore surfaces
• Certificate of Accuracy included with each unit, traceable to NIST
• Meets ASME B89.1 standards for plain plug gages
• Compact 2.0-inch overall length for easy handling in tight inspection setups

Compatibility

Designed for use in go inspection applications with holes of 6.9 mm nominal diameter. Compatible with standard gage handle systems and suitable for use with set micrometers, verniers, and other measuring devices as noted in the product specifications.

Installation Notes

Plug gages are handled by dimensional inspectors and quality technicians and do not require power or mechanical installation. Before use, clean the gage and the bore being inspected to remove chips, oil, or debris that could affect the reading. Apply only hand pressure when inserting the gage into the bore - forcing the gage can damage both the gage and the workpiece. Store the gage in its protective case when not in use to preserve the calibrated surface finish and prevent corrosion.