Vermont Gage 112420330 Class Zz Minus Plug Pin Gage 20.33mm

Product Description

The VERMONT GAGE 112420330 is a Class ZZ Minus plug pin gage used to perform NoGo inspection of bores, holes, and other precision features. Machined from steel with a 10 micro finish, this pin gage measures 20.33 mm in diameter with a tolerance of 0.00508 mm, making it suitable for high-accuracy dimensional verification in production and quality-control environments. The part ships with a Certificate of Accuracy traceable to NIST standards. Machinists, quality technicians, and metrology professionals rely on this style of gage to verify that a feature does not exceed its maximum material condition limit.

This pin gage is suited for use in manufacturing facilities, machine shops, and inspection labs where tight bore tolerances must be confirmed. It is designed for NoGo inspection applications and is also compatible with use alongside set micrometers, verniers, and other measuring devices that require a calibrated reference standard. The 20.33 mm diameter targets metric-dimensioned workpieces common in precision machining and assembly operations. Overall length is 2 inches, making it easy to handle in standard bench inspection setups.

Key Features

• Class ZZ Minus tolerance class for NoGo inspection of precision bores
• 20.33 mm measurement diameter with 0.00508 mm tolerance
• Steel construction with 10 micro surface finish for consistent contact
• Includes Certificate of Accuracy with NIST traceability
• Compatible with set micrometers, verniers, and other precision measuring devices
• Compact 2-inch overall length for easy bench and in-line use

Compatibility

Designed for NoGo bore inspection and as a reference standard for set micrometers, verniers, and other precision measuring devices requiring a calibrated 20.33 mm diameter pin.

Installation Notes

Pin gages are handled and used by quality technicians and machinists and do not require power or mechanical installation. Clean the gage and the part being inspected before use to prevent debris from affecting the measurement. Store the pin gage in its case when not in use to protect the lapped surface finish. Follow your facility calibration schedule and handle with care to avoid nicks or corrosion that could affect accuracy.