Vermont Gage 111112100 Class Zz Plus Plug Gage 0.121 in

Product Description

The VERMONT GAGE 111112100 is a Class ZZ Plus plug gage designed for precision dimensional inspection of bored holes, drilled passages, and machined features at a nominal diameter of 0.121 inches. Built from tool steel, this gage delivers a 0.0002 inch tolerance and a 10 microfinish surface quality, making it a reliable go-inspection tool for quality control environments. It ships with a Certificate of Accuracy traceable to NIST standards, confirming it meets ASME B89.1 requirements. Machinists, metrology technicians, and quality inspectors install and use this gage in production and inspection settings where tight dimensional verification is required.

This plug gage is suited for go inspection tasks on small-diameter features in both production shop floors and inspection labs. It is used alongside set micrometers, verniers, and other precision measuring devices to verify that machined bores fall within acceptable dimensional limits. At 2.0 inches overall length, the gage is compact and easy to handle during repetitive inspection work. It is appropriate for any application where ASME B89.1 Class ZZ Plus gage standards are specified.

Key Features

• Class ZZ Plus tolerance grade with 0.0002 inch tolerance for precise go inspection
• 10 microfinish surface ensures accurate, repeatable contact with the measured bore
• Tool steel construction provides durability for ongoing production inspection use
• Meets ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability
• Compact 2.0 inch overall length for easy single-hand operation

Compatibility

Designed for go inspection use with set micrometers, verniers, and other precision measuring devices requiring a 0.121 inch nominal diameter plug gage per ASME B89.1 Class ZZ Plus specifications.

Installation Notes

Plug gages are handled and used by metrology technicians and quality control inspectors — no power source or mechanical installation is required. Keep the gage clean and lightly oiled when stored to prevent corrosion on the tool steel surface. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece. Store in the provided case or a clean, dry environment to maintain calibration integrity and surface finish.