Vermont Gage 112417850 Class Zz Minus Plug Pin Gage 17.85 Mm

Product Description

The VERMONT GAGE 112417850 is a Class ZZ minus plug pin gage machined from steel and used to verify that a hole or bore does not exceed its maximum material condition. The minus designation indicates the gage is manufactured to a minus tolerance relative to the nominal diameter, making it the NoGo member in a go/no-go gage pair. The nominal measurement diameter is 17.85 mm with a tolerance of 0.00508 mm, and the overall length is 2 inches. Each unit ships with a Certificate of Accuracy traceable to NIST. Dimensional inspection technicians, machinists, and quality control personnel are the primary users of this gage.

This pin gage is suited for NoGo inspection of bored, drilled, or reamed holes in production and quality environments. It is also used to calibrate or verify the accuracy of micrometers, vernier calipers, and other dimensional measuring devices. Typical applications include incoming inspection, in-process checks on machined parts, and first-article verification. The gage is appropriate for use in tool rooms, machine shops, and quality labs where precise hole-size verification is required.

Key Features

• Class ZZ minus tolerance: 0.00508 mm for precise NoGo inspection
• 17.85 mm nominal measurement diameter
• Steel construction for wear resistance and dimensional stability
• 10 micro finish coating for consistent surface quality
• Includes Certificate of Accuracy with NIST traceability
• Compact 2-inch overall length for easy handling in confined inspection setups

Compatibility

Designed for use as the NoGo member of a go/no-go plug gage set and as a reference standard for setting micrometers, verniers, and other dimensional measuring devices. Compatible with standard gage handle sets that accept 17.85 mm diameter pin gages.

Installation Notes

This gage is a hand-held inspection tool and does not require mechanical installation. Handle with clean, dry hands or lint-free gloves to prevent surface contamination and corrosion that could affect accuracy. Store in the provided case or a padded gage tray away from temperature extremes to maintain dimensional stability. Do not force the gage into a hole; a proper NoGo gage should not pass through an in-tolerance bore.