Vermont Gage 112409790 Class Zz Minus Plug Pin Gage 9.79 Mm

Product Description

The VERMONT GAGE 112409790 is a Class ZZ Minus plug pin gage machined from steel and used to verify that a hole or bore does not exceed its maximum allowable size. Rated to a tolerance of 0.00508 mm, this gage is used in NoGo inspection applications where tight dimensional control is required. It measures 9.79 mm in diameter and has an overall length of 2 inches. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for quality control environments that require documented calibration traceability. Machinists, quality technicians, and tool-room professionals are the primary users.

This plug pin gage is intended for use in NoGo inspection routines on production floors, inspection benches, and tool rooms. It is also used to set and verify micrometers, verniers, and other precision measuring devices. The 9.79 mm diameter makes it appropriate for checking bores machined to that nominal size in both light manufacturing and precision machining environments. Its steel construction and 10 microfinish surface coating help maintain accuracy over repeated use cycles.

Key Features

• Class ZZ Minus tolerance rating at 0.00508 mm for NoGo inspection use
• 9.79 mm measurement diameter for precise bore verification
• Steel construction with 10 microfinish surface for consistent gauge contact
• Includes Certificate of Accuracy with NIST traceability for documented calibration records
• Compact 2-inch overall length for easy handling at the inspection bench or machine

Compatibility

Designed for use in NoGo bore inspection applications and as a setting reference for micrometers, verniers, and other precision measuring devices requiring a 9.79 mm reference diameter.

Installation Notes

Plug pin gages are handled and used by quality technicians and machinists, and do not require power tools or mechanical installation. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the steel surface. Do not force the gage into a bore; apply only light, controlled hand pressure to avoid damaging the gage or the workpiece. Store in a protective case away from temperature extremes to maintain dimensional stability.