Vermont Gage 112409110 Class Zz Minus Plug Pin Gage 9.11mm

Product Description

The VERMONT GAGE 112409110 is a Class ZZ Minus plug pin gage ground to a 9.11 mm diameter with a tolerance of 0.00508 mm. It is used to verify that a hole or bore does not exceed its maximum allowable size, functioning as a NoGo inspection member in go/nogo gage sets. The gage is machined from steel and features a 10 microfinish surface coating. At 2 inches in overall length, it is sized for benchtop and in-process inspection work. Each unit ships with a Certificate of Accuracy traceable to NIST standards, making it suitable for quality-controlled environments. Machinists, toolmakers, and metrology technicians are the primary users of this type of gage.

This pin gage is intended for dimensional inspection of bored, drilled, reamed, or punched holes in metalworking and manufacturing environments. It is applied in setups involving micrometers, verniers, and other comparative measuring devices where a fixed reference is needed. The Class ZZ tolerance classification designates it for general-purpose inspection rather than master or reference-grade applications. It is appropriate for production-floor inspection, incoming quality control, and tool calibration workflows where NoGo verification of a 9.11 mm feature is required.

Key Features

• Class ZZ Minus tolerance designation for NoGo inspection applications
• 9.11 mm diameter ground to 0.00508 mm tolerance
• 10 microfinish surface coating for consistent contact and wear resistance
• Steel construction for dimensional stability
• Includes Certificate of Accuracy with NIST traceability
• Compatible with micrometers, verniers, and other setting devices

Compatibility

Designed for use as a NoGo inspection gage member and as a setting reference for micrometers, verniers, and other measuring devices requiring a fixed 9.11 mm diameter reference.

Installation Notes

Pin gages are handled and applied by metrology technicians, quality inspectors, and toolmakers. Always clean the gage and the feature under inspection before use to prevent debris from affecting measurement accuracy. Store the gage in its case when not in use to protect the ground surface from nicks and corrosion. Do not force the gage into a feature; resistance indicates the bore is at or below the NoGo limit.