Vermont Gage 111176700 Class Zz Plus Plug Gage 0.767 in

Product Description

The VERMONT GAGE 111176700 is a Class ZZ Plus cylindrical plug gage designed to measure bore and hole diameters with high precision. Built from tool steel, this gage checks a 0.767-inch diameter with a tolerance of 0.0002 inches and a 10 microinch surface finish. It is used in quality control and inspection workflows where dimensional accuracy must be verified against a known standard. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming compliance with ASME B89.1. Metrology technicians, machinists, and QC inspectors are the primary users of this type of instrument.

This plug gage is suited for go inspection of machined holes, bores, and similar features in both production and job-shop environments. It is also used to set and verify micrometers, verniers, and other measuring devices requiring a certified reference standard. At 2.0 inches overall length, it handles comfortably in hand-checking applications. Residential and light commercial machine shops, aerospace component manufacturers, and precision fabrication facilities all use Class ZZ Plus gages as part of routine dimensional inspection programs.

Key Features

• 0.767-inch measurement diameter with 0.0002-inch tolerance for precise go inspection
• 10 microinch surface finish for consistent, repeatable contact with bore surfaces
• Tool steel construction provides durability and resistance to wear in repeated use
• Meets ASME B89.1 standards for dimensional gaging
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Compact 2.0-inch overall length suits bench and in-process inspection tasks

Compatibility

Designed for go inspection of machined bores and holes at 0.767 inches diameter, and suitable for setting micrometers, verniers, and other measuring devices requiring a certified plug gage reference.

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 not in use to prevent corrosion on the tool steel surfaces. Store in the provided case or a protected environment away from temperature extremes to maintain dimensional stability. Reference the included NIST-traceable Certificate of Accuracy and re-calibrate per your facility quality management schedule.