Vermont Gage 112215960 Class Zz Minus Plug Pin Gage 15.96mm

Product Description

The VERMONT GAGE 112215960 is a Class ZZ Minus plug pin gage ground to a diameter of 15.96 mm with a tolerance of 0.00508 mm. It is used to verify that a hole or bore does not exceed its maximum allowable size, making it the NoGo member in a go/no-go inspection pair. The gage is machined from steel and ships with a Certificate of Accuracy traceable to NIST, confirming dimensional conformance out of the box. Dimensional inspection technicians, quality control personnel, and machining professionals use this type of gage on the shop floor or in inspection rooms where tight bore tolerances must be confirmed quickly and reliably.

This plug pin gage is suited for NoGo bore inspection in manufacturing, machining, and quality assurance environments. It is also used to set and verify micrometers, verniers, and other measuring devices that require a known reference diameter. At 2 inches in overall length, it fits standard pin gage handles and nests easily in organized gage sets. Typical applications include checking drilled, reamed, or honed bores in metalworking, tooling, and precision assembly operations where hole size must be held to close tolerance.

Key Features

• Class ZZ Minus tolerance class - ground for NoGo inspection use
• 15.96 mm diameter with 0.00508 mm tolerance for high-precision bore verification
• Steel construction for durability and dimensional stability in shop environments
• 2-inch overall length fits standard pin gage handles
• Includes Certificate of Accuracy with NIST traceability
• Suitable for setting micrometers, verniers, and other measuring devices

Compatibility

Designed for use as a NoGo member in plug gage inspection sets and as a reference standard for setting micrometers, verniers, and comparable measuring instruments requiring a 15.96 mm reference diameter.

Installation Notes

Handle pin gages by the body or a proper gage handle to avoid transferring hand heat, which can temporarily affect dimensional readings. Clean the gage and the bore with a lint-free cloth before use to prevent debris from producing false rejections. Store in a protective case away from other metal tooling to prevent nicks or surface damage that would affect accuracy. Periodic recertification against NIST-traceable standards is recommended to maintain measurement confidence over time.