Vermont Gage 112309210 Class Zz Plus Plug Gage 9.21 Mm

Product Description

The VERMONT GAGE 112309210 is a Class ZZ Plus plug gage designed for precision dimensional inspection of machined bores and holes. Manufactured from tool steel with a 10 microfinish surface coating, this gage checks whether a hole meets its minimum acceptable size under go inspection criteria. It carries a tolerance of 0.00508 mm, making it suitable for tight-tolerance work where measurement accuracy is critical. A Certificate of Accuracy with NIST traceability is included, satisfying documentation requirements for quality management systems. Machinists, quality technicians, and toolroom personnel rely on this type of gage for fast, repeatable attribute inspection on the shop floor or in the inspection lab.

This plug gage is used in applications requiring go inspection of holes nominally sized at 9.21 mm. It is compatible with standard gage handle systems and works alongside set micrometers, verniers, and other calibrated measuring devices for complete dimensional verification. Typical install scenarios include incoming inspection, in-process quality checks, and final inspection on turned, drilled, or bored workpieces in both job-shop and production environments. Manufactured to ASME B89.1 standards, it meets widely recognized requirements for plain plug gage accuracy and form.

Key Features

• Class ZZ Plus tolerance rating of 0.00508 mm for tight-tolerance go inspection
• Tool steel construction for wear resistance and dimensional stability
• 10 microfinish surface coating reduces friction and protects gage surfaces
• Includes Certificate of Accuracy with NIST traceability for audit and quality records
• Manufactured to ASME B89.1 standards
• Compact overall length of 2.0000 inches suits bench and handheld use

Compatibility

Designed as an OEM-style go plug gage for use with standard adjustable gage handles sized for small-diameter plug gage blanks. Compatible with set micrometers, verniers, and other measuring devices for go inspection applications per the supplier specification.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no permanent installation is required. Before use, clean both the gage and the part bore with a lint-free cloth to remove chips, oil, and debris that could affect the reading or damage the gage surface. Never force a go gage through a hole; if the gage does not pass under light hand pressure, the bore is undersize. Store the gage in its case away from other metal tools to prevent nicking the precision surface.