Vermont Gage 112104920 Class Zz Plus Plug Gage 4.92mm

Product Description

The VERMONT GAGE 112104920 is a Class ZZ Plus cylindrical plug gage designed to verify hole diameters to tight tolerances in production and inspection environments. It measures 4.92 mm in diameter with a tolerance of 0.00508 mm and a 10 microfinish surface finish. The overall length is 2.0000 inches. Manufactured from tool steel, this plug gage delivers the dimensional stability and wear resistance required for reliable go inspection work. Each unit ships with a Certificate of Accuracy with NIST Traceability, making it suitable for controlled inspection and quality documentation requirements. Machinists, toolroom technicians, and quality control inspectors are the primary users.

This plug gage is used in go inspection applications to confirm that a hole or bore meets minimum acceptable size before a part advances in production. It is also compatible with use alongside set micrometers, verniers, and other precision measuring devices for comparative measurement setups. Typical deployment is in machine shops, toolrooms, and quality labs handling close-tolerance metalwork. The compact 2.0000-inch overall length suits benchtop inspection use as well as in-process checks at the machine.

Key Features

• 4.92 mm diameter with 0.00508 mm tolerance for high-precision go inspection
• 10 microfinish surface finish for consistent, repeatable gage contact
• Tool steel construction provides hardness and dimensional stability under repeated use
• Includes Certificate of Accuracy with NIST Traceability for documented quality systems
• Conforms to ASME B89.1 standards
• 2.0000-inch overall length suits benchtop and in-process inspection setups

Compatibility

Designed for go inspection use and compatible with set micrometers, verniers, and other precision measuring devices per the manufacturer application data.

Installation Notes

Plug gages are handled and used by quality control technicians and toolroom machinists. Before use, clean the gage and the bore being checked to remove chips, coolant, and debris that could affect measurement accuracy. Do not force the gage through a hole; apply only light hand pressure to avoid damage to the gage or the workpiece. Store the gage in its protective case when not in use to prevent corrosion and surface damage.