Vermont Gage 112307030 Class Zz Plus Plug Gage 7.03mm

Product Description

The VERMONT GAGE 112307030 is a Class ZZ Plus plug gage designed for go inspection of bored, drilled, and reamed holes with a nominal diameter of 7.03 mm. Manufactured from tool steel and finished to a 10 microfinish surface quality, this gage delivers the tight dimensional control that quality-control technicians and machinists require on the shop floor. The tolerance is held to 0.005 mm (0.00508 mm per ASME B89.1), making it suitable for precision inspection tasks where bore acceptance or rejection must be verified quickly and reliably. Each unit ships with a Certificate of Accuracy traceable to NIST.

This plug gage is used in production and inspection environments where bores must be confirmed within a defined tolerance range before assembly. Typical applications include verifying hole diameter on machined parts, setting micrometers, calibrating verniers, and validating other measuring devices. The 7.03 mm diameter targets metric bore specifications common in both general manufacturing and precision machining operations. It is sized for bench-top and in-process inspection use by quality control personnel, tool room machinists, and calibration technicians.

Key Features

• Class ZZ Plus tolerance held to 0.005 mm per ASME B89.1
• 10 microfinish surface for accurate, repeatable contact with bore walls
• Tool steel construction for wear resistance and dimensional stability
• Certificate of Accuracy included with NIST traceability
• Suitable for go inspection, setting micrometers, and calibrating verniers
• Overall length of 2.0000 inches for comfortable single-hand use

Compatibility

Designed as an OEM-style go plug gage for inspecting metric bores with a nominal diameter of 7.03 mm in accordance with ASME B89.1 standards.

Installation Notes

Plug gages are handled and used by quality control technicians and tool room personnel, not installed in mechanical systems. Clean the gage and the bore surface before each use to prevent debris from causing false readings or surface damage. Store the gage in its protective case when not in use to preserve the 10 microfinish and dimensional integrity. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece.