Vermont Gage 112313250 Class Zz Plus Plug Gage 13.25mm

Product Description

The VERMONT GAGE 112313250 is a Class ZZ Plus cylindrical plug gage designed for precision dimensional inspection of bored, reamed, or drilled holes at a nominal diameter of 13.25 mm. Manufactured from tool steel with a 10 microinch surface finish, this gage delivers a tolerance of 0.005 mm, meeting the requirements of ASME B89.1. Each unit ships with a Certificate of Accuracy backed by NIST traceability, giving quality technicians and machinists the documentation needed for regulated inspection environments. Overall length is 2.0 inches. It is used as a Go-type inspection gage and is also suitable for setting micrometers, verniers, and other comparative measuring instruments.

Class ZZ Plus plug gages are standard tooling in machine shops, production lines, and quality labs where hole diameter acceptance or rejection must be documented and repeatable. This gage is appropriate for both incoming inspection and in-process quality checks on components requiring controlled bore tolerances. Its compact size and tool steel construction make it durable for regular bench use. Licensed metrology technicians, quality engineers, and precision machinists are the typical users of this type of gage.

Key Features

• Class ZZ Plus tolerance of 0.005 mm for precision Go inspection
• Tool steel construction for wear resistance and dimensional stability
• 10 microinch surface finish for consistent, reliable contact measurement
• Includes Certificate of Accuracy with NIST traceability
• Meets ASME B89.1 dimensional gage standards
• Suitable for setting micrometers, verniers, and other measuring devices

Compatibility

Designed for Go-type hole inspection at 13.25 mm nominal diameter. Also suitable for setting and calibrating micrometers, verniers, and other comparative measuring devices per standard metrology practice.

Installation Notes

Handle plug gages with clean, dry hands or cotton gloves to prevent corrosion from skin oils. Before use, verify the gage and workpiece are at the same ambient temperature to avoid thermal expansion errors. Do not force the gage through a hole; light, steady hand pressure is sufficient for a Go inspection. Store in a protective case away from abrasive tools and contaminants when not in use.