Vermont Gage 111137400 Class Zz Plus Plug Gage 0.374 in

Product Description

The VERMONT GAGE 111137400 is a Class ZZ Plus plug gage designed for precision go inspection of bored, drilled, and reamed holes. Manufactured from tool steel with a 10 microfinish surface, this gage checks whether a hole or bore falls within the specified dimensional tolerance. The measurement diameter is 0.374 inches with a tolerance of 0.0002 inches, making it suitable for close-tolerance inspection work. Overall length is 2.0 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting quality system documentation requirements. Machinists, quality technicians, and tool room personnel use this gage in production and inspection environments.

This plug gage is used in go inspection applications to verify that a hole is not undersized. It is also suitable for setting and checking micrometers, verniers, and other measuring devices requiring a known reference diameter. Applications span general manufacturing, job shop environments, and quality control departments where ASME B89.1 conformance is required. The compact 2.0-inch overall length makes it practical for benchtop use and direct in-process inspection at the machine.

Key Features

• Class ZZ Plus tolerance class per ASME B89.1 for go inspection applications
• 0.374-inch measurement diameter with 0.0002-inch tolerance
• 10 microfinish surface for consistent, low-wear contact
• Tool steel construction for durability in production environments
• Includes Certificate of Accuracy with NIST traceability for quality system compliance
• Suitable for setting micrometers, verniers, and other dimensional measuring instruments

Compatibility

Designed for go inspection of holes and bores with a nominal diameter of 0.374 inches, and for use as a reference standard when setting micrometers, verniers, and other measuring devices.

Installation Notes

Plug gages are handled and used by quality technicians and machinists and do not require permanent installation. Handle with clean cotton gloves to prevent corrosion from skin oils, and store in a protective case away from abrasive surfaces. Clean contact surfaces before each use to ensure accurate measurement. Follow your facility quality procedures and ASME B89.1 guidelines for gage handling, calibration intervals, and documentation.