Vermont Gage 111171800 Class Zz Plus Plug Gage 0.718 in

Product Description

The VERMONT GAGE 111171800 is a Class ZZ Plus plug gage machined from tool steel for precise hole diameter inspection. It measures 0.718 inches in diameter and holds a tolerance of 0.0002 inches, making it suitable for go inspection tasks where tight dimensional control is required. The gage features a 10 microinch surface finish and comes with a Certificate of Accuracy traceable to NIST. At 2.0 inches in overall length, it fits standard gage handle setups used in quality control and production environments. Metrology technicians, machinists, and quality inspectors rely on this type of gage for reliable, repeatable measurement results.

This plug gage is intended for go inspection applications, verifying that bored holes, drilled passages, and machined openings meet minimum diameter requirements. It is also suited for setting and calibrating instruments such as micrometers, vernier calipers, and other measuring devices where a known reference diameter is needed. Typical use environments include machine shops, production floors, and quality labs handling precision metal components. The ASME B89.1 standard governs its dimensional and tolerance requirements.

Key Features

• 0.718-inch nominal diameter with 0.0002-inch tolerance for precise go inspection
• 10 microinch surface finish for consistent, repeatable gage contact
• Tool steel construction for durability and wear resistance in production use
• Meets ASME B89.1 dimensional standards
• Includes Certificate of Accuracy with NIST traceability
• Suitable for setting micrometers, verniers, and other measuring devices

Compatibility

Designed for use with standard plug gage handles accepting 0.718-inch go-member gages. Also functions as a reference standard for setting micrometers, vernier calipers, and similar measuring instruments requiring a certified diameter reference.

Installation Notes

Plug gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Store the gage in its protective case when not in use and keep it away from abrasive surfaces to preserve the 10 microinch finish. Apply a light coat of instrument oil periodically to protect the tool steel from rust. Periodic recertification against NIST-traceable standards is recommended to maintain measurement integrity in calibrated inspection environments.