Vermont Gage 112409870 Class Zz Minus Plug Pin Gage 9.87mm

Product Description

The VERMONT GAGE 112409870 is a Class ZZ Minus plug pin gage designed for NoGo inspection applications in precision measurement workflows. Machined from steel with a 10 microfinish surface coating, this pin gage measures 9.87 mm in diameter and holds a tolerance of 0.00508 mm, making it suitable for verifying that a bore or hole does not exceed its maximum allowable size. The overall length is 2 inches. Each unit ships with a Certificate of Accuracy traceable to NIST standards. Licensed metrologists, quality technicians, and toolroom machinists are the primary users of this gage.

This pin gage is used in manufacturing and quality control environments where tight bore tolerances must be confirmed during NoGo inspection checks. It is also suited for setting and verifying micrometers, verniers, and other precision measuring devices. Typical applications include incoming inspection, in-process gauging, and final part verification across aerospace, automotive, and general machining operations where hole-size compliance is critical.

Key Features

• Class ZZ Minus tolerance classification for NoGo inspection use
• 9.87 mm measurement diameter with 0.00508 mm tolerance
• Steel construction with 10 microfinish surface coating for accurate, repeatable contact
• 2-inch overall length for easy hand-held use
• Includes Certificate of Accuracy with NIST traceability
• Compatible with micrometers, verniers, and other precision measuring devices

Compatibility

Designed for use in NoGo bore inspection and for setting micrometers, verniers, and other precision measuring devices requiring a 9.87 mm reference diameter.

Installation Notes

Pin gages are handled and stored by quality technicians and toolroom machinists following standard metrology practices. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the steel surface. Do not force the pin into a bore; apply only light, controlled hand pressure to avoid damaging the gage or the workpiece. Store in the provided case or a dedicated gage holder to protect the precision finish.