Vermont Gage 112316630 Class Zz Plus Plug Gage 16.63mm

Product Description

The VERMONT GAGE 112316630 is a Class ZZ Plus plug gage designed for precision dimensional inspection of bored holes and machined openings. Manufactured from tool steel with a 10 micro finish coating, this gage checks whether a hole falls within acceptable tolerance limits for go inspection applications. The nominal diameter is 16.63 mm with a tolerance of 0.005 mm, making it suitable for close-tolerance quality control work in machine shops, toolrooms, and production inspection environments. Each unit ships with a Certificate of Accuracy traceable to NIST. The overall length is 2.0000 inches. Machinists, quality technicians, and metrology personnel are the primary users of this tool.

This plug gage is used in go inspection procedures to verify that a machined hole is not undersized. It is also used to set micrometers, verniers, and other measuring devices requiring a known reference diameter. Typical applications include incoming inspection, in-process quality checks, and final acceptance inspection on precision machined components. The 16.63 mm diameter makes it appropriate for metric-dimensioned workpieces where tight tolerance verification is required. Conforms to ASME B89.1 standards for plain plug gages.

Key Features

• Class ZZ Plus tolerance grade: 0.005 mm tolerance for precise go inspection
• Tool steel construction for durability and dimensional stability
• 10 micro surface finish coating for consistent gage contact
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 standards
• Suitable for setting micrometers, verniers, and other measuring devices

Compatibility

Designed for go inspection of holes nominally 16.63 mm in diameter. Compatible with standard plug gage handles sized for this diameter range. Suitable for use with micrometers, verniers, and other measuring devices requiring a reference standard of this size.

Installation Notes

Plug gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Store in a protective case away from magnetic fields and temperature extremes to maintain dimensional stability. Before use, clean the gage and the workpiece bore to remove chips, coolant, and debris. Do not force the gage into an undersized bore, as this will damage the gage and invalidate its calibration.