Vermont Gage 111178500 Class Zz Plus Plug Gage 0.785 in

Product Description

The VERMONT GAGE 111178500 is a Class ZZ Plus plug gage designed for precision dimensional inspection of machined bores and holes. Manufactured from tool steel, it measures a nominal diameter of 0.785 inches with a tolerance of 0.0002 inches, making it suitable for applications where tight dimensional control is required. The gage carries a 10 microfinish surface finish and an overall length of 2.0 inches. It ships with a Certificate of Accuracy that includes NIST traceability, supporting quality documentation requirements in shop and inspection environments. Dimensional inspection technicians, machinists, and quality control personnel are the primary users of this tool.

This plug gage is used in go inspection applications to verify that a bore or hole is at or above the minimum acceptable size. It is also compatible with setting and calibrating micrometers, verniers, and other dimensional measuring devices. Typical installation scenarios include incoming inspection, in-process quality checks on machined parts, and calibration setups in manufacturing and toolroom environments. The gage conforms to ASME B89.1 standards, making it appropriate for both commercial and precision-grade inspection work across a range of industries.

Key Features

• Nominal diameter of 0.785 inches for precise bore inspection
• Class ZZ Plus tolerance of 0.0002 inches for tight dimensional control
• 10 microfinish surface for consistent gage contact and wear resistance
• Tool steel construction provides durability in shop environments
• Includes Certificate of Accuracy with NIST traceability for quality documentation
• Conforms to ASME B89.1 standards

Compatibility

Designed for go inspection of bores and holes at 0.785 inches nominal diameter, and for use as a setting standard with micrometers, verniers, and other dimensional measuring devices.

Installation Notes

Plug gages are handled and used by machinists, metrologists, and quality technicians. Always clean the gage and the bore or reference surface before use to prevent debris from affecting readings or damaging the finish. Store the gage in its case when not in use to protect the precision ground surface. Do not force the gage through a bore, as this can damage both the gage and the part being inspected.