Vermont Gage 112300890 Class Zz Plus Plug Gage 0.89mm

Product Description

The VERMONT GAGE 112300890 is a Class ZZ Plus cylindrical plug gage machined from tool steel, designed for go inspection of small-diameter bores and holes. It measures 0.89 mm in diameter with a tolerance of 0.00508 mm and a 10 microfinish surface finish, making it suitable for precision dimensional verification in quality-control environments. The gage ships with a Certificate of Accuracy traceable to NIST, confirming it meets ASME B89.1 standards. Metrology technicians, machinists, and quality inspectors use this type of instrument to verify bore dimensions on machined components before assembly or final acceptance.

This plug gage is used in applications requiring precise go inspection of small bores, including verification setups with micrometers, vernier calipers, and other measuring devices. Its compact form factor and precision tool steel construction make it well suited for production floor inspection and calibration lab use alike. The 10 microfinish surface finish reduces wear-induced measurement error during repeated insertions, supporting reliable results in high-volume inspection workflows.

Key Features

• Class ZZ Plus tolerance grade — 0.00508 mm tolerance for precise go inspection
• Tool steel construction for durability and dimensional stability
• 10 microfinish surface finish minimizes wear and measurement inconsistency
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional gage standards
• Compatible with micrometers, verniers, and other measuring device setups

Compatibility

Designed for go inspection applications using micrometers, verniers, and other precision measuring devices requiring a 0.89 mm diameter cylindrical plug gage per ASME B89.1.

Installation Notes

Plug gages of this type are handled and used by metrology technicians and quality inspectors. Clean the gage and the bore being inspected before use to prevent contamination from affecting results. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Do not force the gage into a bore — smooth, controlled insertion is required to protect the precision ground surface finish and avoid permanent dimensional distortion.