Vermont Gage 112303790 Class Zz Plus Plug Gage 3.79 Mm

Product Description

The VERMONT GAGE 112303790 is a Class ZZ Plus plug gage designed for precision bore and hole inspection in manufacturing and metrology environments. With a nominal diameter of 3.79 mm and a tolerance of 0.00508 mm, this gage delivers the dimensional accuracy required for go inspection tasks. The tool steel construction and 10 microfinish surface coating ensure long service life and consistent measurement reliability. Machinists, quality technicians, and calibration professionals use plug gages like this to verify that drilled, reamed, or bored features meet drawing tolerances before parts move to the next stage of production.

This plug gage is suited for use in precision inspection stations, tool rooms, and quality labs. It is compatible with go inspection workflows and can be used alongside micrometers, verniers, and other measuring devices for setup and verification. The overall length of 2.0000 inches makes it easy to handle in tight fixture setups. A Certificate of Accuracy with NIST traceability is included, supporting ISO and AS9100 quality system documentation requirements. It is appropriate for both incoming inspection and in-process quality checks in light manufacturing, machining, and job shop environments.

Key Features

• Class ZZ Plus tolerance classification for go inspection applications
• 3.79 mm nominal diameter with 0.00508 mm tolerance for tight dimensional control
• Tool steel construction for durability and wear resistance
• 10 microfinish surface coating for accurate, repeatable contact
• Includes Certificate of Accuracy with NIST traceability
• Meets ASME B89.1 standards for plain gages

Compatibility

Designed for go inspection use with micrometers, verniers, and other precision measuring devices per ASME B89.1 requirements.

Installation Notes

Plug gages should be handled by calibration technicians or quality professionals familiar with gage care and handling procedures. Store the gage in its protective case when not in use to prevent damage to the precision-ground surface. Clean contact surfaces before each use to remove debris that could affect measurement accuracy. Follow your facility quality management system procedures for gage calibration intervals and out-of-tolerance disposition.