Vermont Gage 112301890 Class Zz Plus Plug Gage 1.89mm

Product Description

The VERMONT GAGE 112301890 is a Class ZZ Plus plug gage designed for precise dimensional inspection of small bores and holes. It measures 1.89 mm in diameter with a tolerance of 0.00508 mm, making it suitable for high-accuracy go inspection work. The gage body is machined from tool steel and features a 10 microfinish surface on the working end. Each unit ships with a Certificate of Accuracy traceable to NIST, meeting the documentation requirements of quality management systems. Dimensional inspection technicians, machinists, and metrology lab personnel are the primary users of this type of gage.

This plug gage is used in manufacturing, inspection, and calibration environments where small-diameter bore acceptance is required. It is appropriate for go inspection applications and for setting or verifying micrometers, verniers, and other measuring devices. The 1.89 mm size targets precision machined components where tight hole tolerances must be confirmed before assembly or final acceptance. It conforms to ASME B89.1 standards, making it suitable for use in facilities that require traceable, standards-compliant measurement tooling.

Key Features

• 1.89 mm working diameter with 0.00508 mm tolerance for precise go inspection
• 10 microfinish surface on the gage pin for consistent, repeatable contact
• Tool steel construction for wear resistance and dimensional stability
• Conforms to ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST traceability for quality system compliance
• Overall length of 2.0000 inches for standard handle compatibility

Compatibility

Designed for use in go inspection applications and for setting micrometers, verniers, and other precision measuring devices requiring a 1.89 mm reference standard.

Installation Notes

Plug gages are handled and used by dimensional inspection personnel and quality technicians, not installed in mechanical systems. Store the gage in its case when not in use to prevent surface damage and corrosion. Clean the gage pin with a lint-free cloth before each use and avoid dropping or contacting the working surface against hard objects. Handle with clean, dry hands or cotton gloves to prevent oil transfer that could affect surface finish readings.