Vermont Gage 112408750 Class Zz Minus Plug Pin Gage 8.75mm

Product Description

The VERMONT GAGE 112408750 is a Class ZZ Minus plug pin gage machined from steel and used to perform NoGo-side dimensional inspection of bored holes, machined features, and precision-fit components. At 8.75 mm in diameter with a tolerance of 0.00508 mm, this gage delivers the close-tolerance verification required for quality control in machine shops and manufacturing environments. The overall length of 2 inches keeps it manageable for benchtop and in-line inspection work. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting documentation requirements in ISO and AS9100 quality systems.

This pin gage is suited for NoGo inspection applications where confirming a hole or bore does not exceed its maximum allowable size is critical. It is also used to set and verify micrometers, verniers, and other measuring devices requiring a known reference standard. Typical users include quality technicians, tool-and-die makers, machinists, and metrology lab personnel working with close-tolerance steel or precision-machined components. The 10 microfinish surface coating helps maintain gage accuracy over repeated use cycles.

Key Features

• Class ZZ Minus tolerance classification for NoGo-side inspection
• 0.00508 mm tolerance for high-precision dimensional verification
• 10 microfinish surface coating for consistent contact and wear resistance
• NIST-traceable Certificate of Accuracy included for quality system compliance
• Steel construction for durability in production and lab environments
• Compact 2-inch overall length suitable for benchtop and in-process inspection

Compatibility

Designed for use in NoGo hole inspection, and as a reference standard for setting micrometers, verniers, and other precision measuring devices requiring an 8.75 mm reference diameter.

Installation Notes

Pin gages should be handled with clean, dry hands or cotton gloves to prevent corrosion from skin oils. Store the gage in its case when not in use and keep it away from magnetic fields and abrasive surfaces. No power tools or torque values apply to gage use; apply only hand pressure during inspection to avoid springing or scratching the gage surface. Periodic re-certification is recommended per your facility quality plan to maintain NIST traceability.