Vermont Gage 112206680 Class Zz Minus Plug Pin Gage 6.68mm

Product Description

The VERMONT GAGE 112206680 is a Class ZZ Minus plug pin gage designed for precision dimensional inspection. It measures 6.68 mm in diameter with a tolerance of 0.00508 mm, making it suitable for NoGo go/no-go inspection routines where tight tolerances are critical. The gage is machined from steel with a 10 microfinish surface coating for consistent, repeatable contact. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting quality documentation requirements in regulated inspection environments. Metrologists, quality technicians, and tool room personnel use this gage for verifying hole sizes and calibrating micrometers, verniers, and other measuring devices.

This plug pin gage is used in production and inspection settings where hole diameter verification is required to Class ZZ Minus standards. The Minus designation indicates the gage is made to the low side of tolerance, which is standard for NoGo members in a go/no-go gage set. Typical applications include incoming inspection, in-process quality control, and calibration reference tasks for micrometers, verniers, and similar measuring instruments.

Key Features

• Class ZZ Minus tolerance class: 0.00508 mm tolerance for NoGo inspection use
• Steel construction with 10 microfinish surface coating for repeatable, low-wear contact
• NIST-traceable Certificate of Accuracy included for quality system documentation
• 6.68 mm diameter for direct hole measurement and instrument calibration reference
• Overall length of 2 inches for standard handheld use
• Lightweight at 0.03 pounds for easy single-hand operation

Compatibility

Designed for use in NoGo inspection applications and as a calibration reference for set micrometers, verniers, and other precision measuring devices requiring a 6.68 mm diameter gage pin.

Installation Notes

Plug pin gages are handled and used by quality technicians and metrologists - not installed in the traditional sense, but proper handling is critical to accuracy. Always clean the gage and the workpiece bore before use to remove debris, oil, or burrs that can affect measurement. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Never force the gage into a bore; if resistance is felt, the hole is undersize or the bore contains debris.