Vermont Gage 111161100 Class Zz Plus Plug Gage 0.611 in

Product Description

The VERMONT GAGE 111161100 is a Class ZZ Plus plug gage manufactured from tool steel, designed to perform go inspection checks on bored, drilled, and reamed holes. It measures a nominal diameter of 0.611 inches with a tolerance of 0.0002 inches and carries a 10 microinch surface finish. At 2.0 inches in overall length, this gage provides a compact, hand-held form factor suited to bench inspection and in-process quality control. Each unit ships with a Certificate of Accuracy that includes NIST traceability, meeting the documentation requirements common in aerospace, automotive, and precision machining environments. Machinists, quality technicians, and tool-room personnel are the primary users of this instrument.

This plug gage is suited for go inspection of workpiece bores in precision manufacturing and metrology applications. It is also referenced as a setting standard for micrometers, verniers, and other measuring devices where a certified, known diameter is needed. Typical install scenarios include incoming inspection stations, CMM correlation checks, and manual bench gaging setups in job shops and production facilities. The ASME B89.1 standard governs its dimensional and tolerance requirements, making it appropriate for facilities that require traceable calibration artifacts.

Key Features

• Class ZZ Plus tolerance grade with 0.0002 inch tolerance for precise go inspection
• 10 microinch surface finish for consistent, repeatable gage-to-bore contact
• Tool steel construction for wear resistance and dimensional stability
• Meets ASME B89.1 standard for plain plug gages
• Includes Certificate of Accuracy with NIST traceability for documented quality systems
• Compact 2.0 inch overall length for easy single-hand operation at the bench

Compatibility

Designed for go inspection of holes at 0.611 inch nominal diameter and for use as a setting standard with set micrometers, verniers, and other measuring devices requiring a certified reference diameter.

Installation Notes

Plug gages are handled and stored by metrology or quality personnel; no power source or mechanical installation is required. Keep the gage clean and lightly oiled with a rust-preventive instrument oil when not in use to preserve the surface finish and dimensional integrity. Avoid dropping or storing the gage in contact with other steel tools, as impact or abrasion can alter the calibrated diameter. Recheck calibration at intervals consistent with your facility quality plan and applicable standards.