Vermont Gage 111155300 Class Zz Plus Plug Gage 0.553 in

Product Description

The VERMONT GAGE 111155300 is a Class ZZ Plus cylindrical plug gage used to verify bore and hole dimensions to tight tolerances. It measures 0.553 inches in diameter with a tolerance of 0.0002 inches, making it suitable for high-accuracy Go inspection work. The gage is machined from tool steel and carries a 10 microinch surface finish. Every unit ships with a Certificate of Accuracy traceable to NIST, meeting the documentation requirements for ISO and quality-controlled manufacturing environments. Machinists, quality technicians, and toolroom professionals use this gage to confirm dimensional conformance during production and inspection routines.

This plug gage is designed for Go inspection applications and is also used to calibrate and verify set micrometers, verniers, and other measuring devices in the shop or lab. Its compact 2.0-inch overall length makes it easy to handle in benchtop and floor inspection setups. It is appropriate for use in precision manufacturing, aerospace, automotive, and general metalworking environments where hole size verification must meet ASME B89.1 standards.

Key Features

• 0.553-inch measurement diameter with 0.0002-inch tolerance for precise Go inspection
• 10 microinch surface finish for consistent, repeatable contact with bore surfaces
• Tool steel construction for durability and wear resistance in production environments
• Includes Certificate of Accuracy with NIST traceability for quality documentation compliance
• Conforms to ASME B89.1 dimensional gage standards
• Compact 2.0-inch overall length suits benchtop and portable inspection use

Compatibility

Designed for Go inspection of bored holes and machined features at 0.553 inches diameter, and for use as a reference standard with set micrometers, verniers, and similar measuring instruments calibrated to ASME B89.1.

Installation Notes

Plug gages should be handled by quality technicians or toolroom personnel following established inspection procedures. Store the gage in its protective case when not in use to prevent nicking or corrosion of the precision ground surfaces. Clean the gage and the bore being inspected before use to avoid false readings caused by debris or coolant residue. Do not force the gage into an undersize hole, as this can damage the lapped surface and alter calibration.