Vermont Gage 112311830 Class Zz Plus Plug Gage 11.83 Mm

Product Description

The VERMONT GAGE 112311830 is a Class ZZ Plus plug gage designed for go inspection of bored, reamed, and machined holes at an 11.83 mm nominal diameter. Manufactured from tool steel with a 10 microfinish surface coating, this gage delivers a tolerance of 0.00508 mm, meeting ASME B89.1 standards for dimensional accuracy. It ships with a Certificate of Accuracy with NIST traceability, making it suitable for quality-control workflows that require documented calibration chain. The overall length is 2.0000 inches. Machinists, quality technicians, and metrologists use this gage to verify hole size during in-process and final inspection on the shop floor or in the inspection room.

This plug gage is applied in go inspection applications where hole diameter conformance must be verified to tight tolerances. It is also compatible with setup and verification of micrometers, verniers, and other precision measuring devices. Typical install scenarios include production floor inspection of machined components, tool-room gage setting, and gauge block verification workflows. The gage is suited for both low-volume job-shop environments and higher-volume production quality checkpoints where ASME B89.1 compliance is a requirement.

Key Features

• Class ZZ Plus tolerance grade meets ASME B89.1 dimensional standards
• 0.00508 mm tolerance for precise go inspection at 11.83 mm nominal diameter
• Tool steel construction with 10 microfinish surface coating for long service life and accurate contact
• Includes Certificate of Accuracy with NIST traceability for documented calibration chain
• Compatible with micrometers, verniers, and other precision measuring devices for setup and reference

Compatibility

Designed for go inspection use at 11.83 mm nominal hole diameter and for setting and verifying micrometers, verniers, and other precision measuring devices per ASME B89.1.

Installation Notes

Plug gages are handled and applied by machinists, metrologists, and quality-control technicians. Clean the gage and the workpiece bore thoroughly before use to prevent debris from affecting the reading. Store the gage in its protective case when not in use to avoid surface damage that could affect calibration. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece finish.