Vermont Gage 112212940 Class Zz Minus Plug Pin Gage 12.94mm

Product Description

The VERMONT GAGE 112212940 is a Class ZZ Minus plug pin gage machined from steel and used to verify bore and hole dimensions in precision inspection work. At 12.94 mm in diameter with a tolerance of 0.00508 mm, this gage is designed for NoGo inspection applications where confirming an upper-limit rejection is critical. The overall length is 2 inches, making it suitable for handheld use at a bench or on the shop floor. Each unit ships with a Certificate of Accuracy traceable to NIST standards, supporting quality management and audit requirements. Dimensional inspectors, machinists, and quality control technicians are the primary users of this tool.

This plug pin gage is intended for NoGo inspection of precision bores and holes in manufacturing and metrology environments. It is also compatible with setup and verification tasks involving set micrometers, verniers, and other measuring devices. Typical applications include incoming inspection, in-process quality checks, and final acceptance testing across industries where tight hole tolerances must be confirmed. The Class ZZ designation identifies this as a commercial-grade gage appropriate for general inspection rather than master or reference gage applications.

Key Features

• Class ZZ Minus tolerance class - suited for NoGo inspection of production parts
• 0.00508 mm tolerance for reliable upper-limit rejection decisions
• Steel construction for durability in repeated-use inspection environments
• 10 micro coating/finish to resist wear and corrosion
• NIST-traceable Certificate of Accuracy included for quality documentation
• Compact 2-inch overall length for easy handheld use

Compatibility

Designed for NoGo bore inspection and for use with set micrometers, verniers, and other precision measuring devices requiring a 12.94 mm reference diameter.

Installation Notes

Plug pin gages are handled and used by dimensional inspectors and quality technicians - no power tools or electrical shutoff procedures apply. Store the gage in its protective case when not in use to prevent surface damage that could affect accuracy. Clean contact surfaces before use and avoid dropping or striking the gage against hard surfaces, as impact can alter the ground diameter. Periodic recalibration against a traceable standard is recommended to maintain measurement integrity over time.