Vermont Gage 112401210 Class Zz Minus Plug Pin Gage 1.21mm

Product Description

The VERMONT GAGE 112401210 is a Class ZZ Minus plug pin gage designed for precision dimensional inspection at 1.21 mm diameter. This single-ended pin gage is used to verify NoGo tolerance limits in bore and hole inspection applications. Built from steel with a 10 microfinish surface coating, it delivers consistent, repeatable measurements within a tolerance of 0.00508 mm. Each unit ships with a Certificate of Accuracy with NIST Traceability, making it suitable for quality-controlled environments where documented calibration standards are required. Licensed metrologists, machinists, and quality technicians use this gage as part of go/nogo inspection routines on precision-machined components.

This plug pin gage is intended for use in inspecting small-diameter bores and holes where tight dimensional control is critical. The 1.21 mm diameter and Class ZZ Minus classification make it appropriate for use alongside micrometers, verniers, and other measuring devices during in-process or final inspection. It is well suited for production floor use in manufacturing, aerospace, automotive, and general machining environments where NIST-traceable documentation is part of the quality management process. The overall length of 2 inches allows for easy handling and consistent insertion into standard gage holding fixtures.

Key Features

• Class ZZ Minus tolerance classification for NoGo inspection applications
• 1.21 mm measurement diameter with 0.00508 mm tolerance
• Steel construction with 10 microfinish surface coating for durability and accuracy
• Includes Certificate of Accuracy with NIST Traceability
• 2-inch overall length for consistent handling and fixture compatibility
• Compatible with micrometers, verniers, and standard measuring device setups

Compatibility

Designed for use in NoGo bore and hole inspection routines and compatible with set micrometers, verniers, and other standard measuring devices as stated by the manufacturer.

Installation Notes

Pin gages are handled and used by quality technicians and machinists in inspection environments. Always clean the gage and the bore being checked before use to prevent contamination from affecting readings. Store pin gages in their original case or a protected holder to avoid surface damage that could compromise measurement accuracy. Do not force the gage into a bore; light hand pressure is sufficient for proper NoGo inspection technique.