Vermont Gage 112305750 Class Zz Plus Plug Gage 5.75 Mm

Product Description

The VERMONT GAGE 112305750 is a Class ZZ Plus plug gage designed for go inspection of bored, drilled, and reamed holes. Manufactured from tool steel with a 10 microfinish surface, this gage checks whether a hole falls within its minimum acceptable size limit. The 5.75 mm diameter and 0.00508 mm tolerance make it suitable for precision inspection tasks in machining, assembly, and quality control environments. It ships with a Certificate of Accuracy traceable to NIST, confirming it meets ASME B89.1 standards. Machinists, quality technicians, and tool-room professionals use this gage as part of a go/no-go inspection routine or to calibrate and verify micrometers, verniers, and other measuring devices.

This plug gage is used in residential shop, commercial production, and industrial quality control settings where hole diameter verification is required. Its compact overall length of 2.0000 inches makes it easy to handle during bench inspection. Typical applications include verifying CNC-machined bores, inspecting drilled and reamed holes on the shop floor, and setting measuring instruments to a known reference diameter. It is appropriate for any operation requiring traceable dimensional verification at the 5.75 mm nominal size.

Key Features

• Class ZZ Plus tolerance of 0.00508 mm for precise go inspection
• Tool steel construction for durability and dimensional stability
• 10 microfinish surface for accurate, repeatable contact with hole walls
• Includes Certificate of Accuracy with NIST traceability
• Meets ASME B89.1 standards for plain plug gages
• Compatible with go/no-go inspection routines and instrument-setting applications

Compatibility

Designed for go inspection use and suitable for setting micrometers, verniers, and other measuring devices requiring a 5.75 mm reference diameter. Conforms to ASME B89.1.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no power tools or utilities need to be shut down prior to use. Store the gage in its protective case when not in use to prevent damage to the finished surface. Clean the gage and the hole being inspected before use to avoid false readings caused by chips or debris. Do not force the gage into a hole, as this can damage both the gage and the workpiece.