Vermont Gage 112302150 Class Zz Plus Plug Gage 2.15 Mm

Product Description

The VERMONT GAGE 112302150 is a Class ZZ Plus plug gage used to verify bore and hole diameters to tight dimensional tolerances. It checks a 2.15 mm diameter with a tolerance of 0.005 mm (0.00508 mm actual), making it suitable for precision go inspection work in manufacturing and quality-control environments. The gage is machined from tool steel and finished to a 10 microfinish surface for consistent, repeatable contact. Every unit ships with a Certificate of Accuracy traceable to NIST, meeting ASME B89.1 standards. Quality technicians, machinists, and metrologists use this gage in production inspection and calibration routines.

This plug gage is designed for go inspection applications where bore acceptance must be confirmed against a known dimensional standard. It is commonly used alongside micrometers, verniers, and other precision measuring devices to set or verify instrument readings. Typical environments include machine shops, toolrooms, inspection labs, and light manufacturing facilities where small-diameter hole tolerances must be held and documented. The NIST-traceable certificate supports quality management systems that require documented measurement traceability.

Key Features

• Class ZZ Plus tolerance rating for precise go inspection at 2.15 mm diameter
• Tolerance of 0.005 mm ensures consistent, reliable acceptance decisions
• Tool steel construction provides hardness and wear resistance for repeated use
• 10 microfinish surface minimizes contact variation and gage wear
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional gage standards

Compatibility

Designed for use as a go plug gage for inspecting 2.15 mm diameter bores and holes. Compatible with standard gage handle systems and suitable for use alongside micrometers, verniers, and other precision measuring devices as noted in the product specifications.

Installation Notes

Plug gages should be handled and stored by trained metrology or quality-control personnel to prevent damage to the precision ground surface. Clean the gage and the bore being inspected before each use to avoid false readings caused by debris or coolant residue. Do not force the gage into an undersized bore, as this will cause premature wear and may compromise calibration. Periodically re-verify the gage against a calibrated master to confirm ongoing accuracy within your quality system requirements.