Vermont Gage 111215500 Class Zz Minus Plug Pin Gage 0.155 in

Product Description

The VERMONT GAGE 111215500 is a Class ZZ minus tolerance plug pin gage used to verify that a bored or drilled hole does not exceed its maximum allowable diameter. Manufactured from steel with a 10 microfinish surface coating, this pin gage measures a nominal diameter of 0.1550 inches and carries an overall length of 2 inches. The tolerance is held to 0.0002 inches minus, placing it within the Class ZZ specification for go/no-go gauging applications. Each unit ships with a Certificate of Accuracy traceable to NIST standards. Machinists, tool-and-die makers, and quality control technicians rely on this type of gage for precise hole inspection in production and inspection environments.

This pin gage is suited for NoGo inspection tasks, as well as for setting and verifying micrometers, verniers, and other measuring devices in shop or lab settings. The 0.1550-inch diameter range targets small-bore work common in precision machining, fixture fabrication, and component inspection. Its compact 2-inch overall length makes it easy to handle in tight inspection scenarios. The NIST-traceable certificate supports quality management systems requiring documented calibration traceability, including ISO and AS9100 environments.

Key Features

• Class ZZ minus tolerance held to 0.0002 inches for reliable NoGo inspection
• 0.1550-inch nominal diameter suits small-bore precision measurement
• Steel construction with 10 microfinish surface coating for consistent contact and wear resistance
• 2-inch overall length for ease of handling in confined inspection setups
• Includes Certificate of Accuracy with NIST traceability to support documented QC systems
• Compatible with micrometers, verniers, and other calibration and measuring devices

Compatibility

Designed for use in NoGo hole inspection applications and for setting micrometers, verniers, and other measuring devices requiring a 0.1550-inch reference diameter.

Installation Notes

Pin gages are handled and stored by metrology technicians or machinists performing inspection work. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the steel body. Do not force the pin into a hole; proper NoGo inspection relies on the pin not entering the hole under light hand pressure only. Store in a protective case away from temperature extremes to preserve dimensional accuracy.