Vermont Gage 111221600 Class Zz Minus Plug Pin Gage 0.2160 in

Product Description

The VERMONT GAGE 111221600 is a Class ZZ Minus plug pin gage machined to a 0.2160-inch diameter for NoGo inspection applications. It is used to verify that a hole or bore does not exceed its maximum allowable size limit, making it a go-to tool for quality control and dimensional inspection work. The gage is manufactured from steel with a 10 microfinish surface coating and ships with a Certificate of Accuracy traceable to NIST standards. Overall length is 2 inches. Machinists, metrology technicians, and quality control inspectors rely on this type of gage for fast, reliable attribute inspection on the shop floor or in the inspection room.

This pin gage is suited for NoGo inspection tasks involving holes, bores, and other features requiring tight dimensional verification. It is also compatible with setting and checking micrometers, verniers, and other precision measuring devices. The Class ZZ tolerance designation indicates a looser tolerance class appropriate for general-purpose production inspection, where extreme precision of the gage itself is not required. Typical applications include incoming inspection, in-process quality checks, and calibration support in manufacturing and machine shop environments.

Key Features

• 0.2160-inch diameter ground to Class ZZ Minus tolerance for NoGo go gauging
• Tolerance of 0.0002 inches per Class ZZ specification
• Steel construction with 10 microfinish surface coating for consistent contact and durability
• 2-inch overall length for easy single-hand use
• Includes Certificate of Accuracy with NIST traceability for documentation and audit compliance
• Compatible with micrometers, verniers, and other precision measuring devices as a setting standard

Compatibility

Designed for NoGo inspection of holes and bores and for setting micrometers, verniers, and other precision measuring devices requiring a certified reference standard at 0.2160 inches diameter.

Installation Notes

Pin gages are handled and used by metrology technicians and quality control personnel, not installed in a mechanical system. Keep the gage clean and lightly oiled when stored to prevent corrosion on the steel body. Do not force the gage into a feature; apply only light, consistent hand pressure to avoid measurement error or gage damage. Store in the original case or a protective sleeve to maintain the 10 microfinish surface condition.