Vermont Gage 111325550 Class Zz Plus Plug Gage 0.2555 in

Product Description

The VERMONT GAGE 111325550 is a Class ZZ Plus plug gage used to verify bore and hole diameters to tight dimensional tolerances. Machined from tool steel with a 10 microfinish surface, it measures a nominal diameter of 0.2555 inches with a tolerance of 0.0002 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming conformance to ASME B89.1. This type of gage is handled by quality control technicians, toolroom inspectors, and precision machinists in manufacturing, job shop, and metrology environments.

The 111325550 is suited for go inspection routines where a specific bore or hole must be verified as within dimensional specification. It is also used to calibrate and set micrometers, verniers, and other measuring devices requiring a known reference diameter. At 2.0 inches overall length, it fits standard gage handle configurations common in production and inspection settings. This gage is appropriate for both high-volume inspection lines and bench-level toolroom work.

Key Features

• Nominal measurement diameter of 0.2555 inches for precise bore inspection
• Tolerance of 0.0002 inches per ASME B89.1 Class ZZ Plus specification
• 10 microfinish surface for consistent, low-wear contact with the gauged feature
• Tool steel construction for durability in repeated-use inspection applications
• Includes Certificate of Accuracy with NIST traceability
• Compatible with standard plug gage handles for ergonomic use

Compatibility

Designed for use in go inspection of bores and holes at 0.2555 inches nominal diameter, and for setting micrometers, verniers, and other measuring devices requiring a calibrated reference standard.

Installation Notes

Plug gages are handled by trained inspection or toolroom personnel and do not require power tools or electrical lockout. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean the gage and the gauged feature before use to prevent debris from affecting the measurement result. Do not force the gage into an undersized bore, as this can damage the gage surface and compromise its calibration.