Vermont Gage 112108100 Class Zz Plus Plug Gage 8.1mm

Product Description

The VERMONT GAGE 112108100 is a Class ZZ Plus cylindrical plug gage used to verify bore diameters in precision machining and quality control applications. It measures 8.1 mm in diameter with a tolerance of 0.00508 mm, making it suitable for go inspection tasks where tight dimensional control is required. The gage is machined from tool steel and features a 10 microfinish surface. Overall length is 2.0 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documentation requirements in ISO and AS9100 quality environments. Licensed metrologists, machinists, and quality technicians are the primary users.

This plug gage is designed for go inspection of bored, drilled, or reamed holes requiring verification at the 8.1 mm nominal diameter. It is also appropriate for setting micrometers, verniers, and other measuring devices where a calibrated reference standard is needed. Typical applications include production floor inspection, incoming inspection, and calibration lab use in both job shop and high-volume manufacturing environments. Conforms to ASME B89.1 dimensional standards.

Key Features

• 8.1 mm diameter with 0.00508 mm Class ZZ Plus tolerance for precise go inspection
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface for consistent, repeatable contact with bore surfaces
• 2.0-inch overall length suits standard hand-held gage handle use
• Includes Certificate of Accuracy with NIST traceability for compliance documentation
• Conforms to ASME B89.1 standards

Compatibility

Designed as an OEM-style Class ZZ Plus plug gage suitable for go inspection of 8.1 mm nominal bores and for use as a setting standard with micrometers, verniers, and other precision measuring devices.

Installation Notes

Plug gages are handled and used by machinists, quality technicians, and metrologists — no power tools or utilities need to be shut down prior to use. Store the gage in its protective case when not in use to prevent damage to the finished surface. Do not force the gage into a bore; apply light, consistent hand pressure only. Clean the gage and bore contact surfaces before each use to prevent measurement error from contamination.