Vermont Gage 111449550 Class Zz Minus Plug Pin Gage 0.4955 in

Product Description

The VERMONT GAGE 111449550 is a Class ZZ Minus plug pin gage machined from steel and used to perform NoGo inspection of bored, drilled, and reamed holes. The gage measures 0.4955 inches in diameter with an overall length of 2 inches and holds a tolerance of 0.0002 inches. It ships with a Certificate of Accuracy traceable to NIST, confirming the gage meets Class ZZ dimensional requirements straight out of the package. Machinists, quality technicians, and tool-and-die professionals use this style of pin gage to verify that a hole does not exceed its maximum material condition limit.

This plug pin gage is suited for dimensional inspection in machine shops, manufacturing facilities, and quality control departments. The Minus designation means the gage is ground to the lower boundary of the Class ZZ tolerance band, making it the correct choice for NoGo functional gaging. It is also used to calibrate and verify setting micrometers, verniers, and other measuring devices that require a known reference diameter near 0.4955 inches.

Key Features

• Class ZZ Minus tolerance classification for NoGo hole inspection
• 0.4955 inch diameter with a tolerance of 0.0002 inches
• Steel construction for wear resistance and dimensional stability
• 10 microfinish surface coating for accurate, repeatable contact
• Includes Certificate of Accuracy with NIST traceability
• Compatible with setting micrometers, verniers, and other measuring devices

Compatibility

Designed for NoGo inspection applications and for setting or verifying micrometers, verniers, and other measuring devices requiring a reference diameter of 0.4955 inches.

Installation Notes

Pin gages are handled and stored by quality technicians and machinists following standard metrology practices. Keep the gage clean and lightly oiled when not in use to prevent corrosion and protect the finished surface. Do not force the gage into a hole; hand pressure only is appropriate for plug gage inspection. Store in the original case or a padded gage block tray to avoid nicks and surface damage that would affect accuracy.