Vermont Gage 112203800 Class Zz Minus Plug Pin Gage 3.80 Mm

Product Description

The VERMONT GAGE 112203800 is a Class ZZ Minus plug pin gage machined from steel and used to perform NoGo inspection of precision bored or drilled holes. It measures a nominal diameter of 3.80 mm with a tolerance of 0.00508 mm, making it suitable for tight-tolerance quality control work in manufacturing and machining environments. The gage is 2 inches in overall length and carries a Certificate of Accuracy with NIST traceability, confirming it meets Class ZZ minus standards. Dimensional inspectors, machinists, and quality technicians use this tool to verify that a hole has not been bored beyond its maximum allowable limit.

This pin gage is intended for NoGo inspection applications where a hole must be confirmed to fall within a specified upper boundary. It is also suited for setting and verifying micrometers, verniers, and other measuring devices requiring a known reference diameter. The Class ZZ classification is commonly applied in general-purpose inspection work where moderate gage-grade tolerance is acceptable. This gage is appropriate for use in machine shops, production lines, and quality labs handling small-diameter precision components.

Key Features

• Class ZZ Minus classification for NoGo plug gage inspection applications
• 3.80 mm nominal measurement diameter with 0.00508 mm tolerance
• Steel construction for durability and dimensional stability
• 10 Microfinish surface coating for consistent, repeatable contact
• Includes Certificate of Accuracy with NIST traceability
• Compatible with use as a reference for micrometers, verniers, and similar measuring devices

Compatibility

Designed for NoGo inspection use and as a reference standard for setting micrometers, verniers, and other measuring devices requiring a traceable 3.80 mm diameter reference.

Installation Notes

This gage is handled by dimensional inspectors and quality technicians and requires no installation in the traditional sense. Keep the gage clean and lightly oiled when stored to prevent corrosion on the steel surface. Do not force the gage into a hole; a NoGo gage should not enter a correctly sized feature. Store in the original case or a padded holder to protect the finished diameter from contact damage.