Vermont Gage 112107500 Class Zz Plus Plug Gage 7.5mm

Product Description

The VERMONT GAGE 112107500 is a Class ZZ Plus plug gage designed for go inspection of bored, drilled, reamed, or machined holes with a 7.5 mm nominal diameter. Machined from tool steel and finished to a 10 microfinish surface, it delivers consistent, repeatable results when checking whether a workpiece hole falls within acceptable tolerance limits. The gage holds a tolerance of 0.005 mm, making it suitable for precise dimensional verification in manufacturing and quality control environments. A Certificate of Accuracy with NIST traceability is included, supporting documentation requirements in calibrated inspection programs. Machinists, quality technicians, and tool and die professionals are the primary users.

This plug gage is used in shop-floor and metrology lab settings wherever hole diameter must be confirmed to specification. It is suited for go inspection tasks alongside setting micrometers, vernier calipers, and other comparative measuring devices. At an overall length of 2.0 inches, the handle is compact and manageable for single-hand use in tight workpiece setups. Typical applications include incoming inspection, in-process dimensional checks, and final inspection on production runs where 7.5 mm hole features are critical to fit or function.

Key Features

• Class ZZ Plus tolerance rating — 0.005 mm — for precise go inspection
• Tool steel construction for durability and wear resistance in production environments
• 10 microfinish surface finish reduces friction and wear during repeated insertions
• Includes Certificate of Accuracy with NIST traceability for calibration documentation
• Conforms to ASME B89.1 standards for plain gage design and tolerancing
• Compact 2.0-inch overall length suits tight-clearance inspection setups

Compatibility

Designed for go inspection of 7.5 mm diameter features; compatible with standard gage handle systems and used alongside setting micrometers, verniers, and other measuring devices as noted in the product specifications.

Installation Notes

Plug gages are handled and used by quality technicians and machinists — no power source or mechanical installation is required. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean the gage and the workpiece bore with a lint-free cloth before use to prevent debris from affecting readings or damaging the gage surface. Periodic recalibration against a traceable standard is recommended to maintain measurement integrity over time.