Vermont Gage 112104480 Class Zz Plus Plug Gage 4.48mm

Product Description

The VERMONT GAGE 112104480 is a Class ZZ Plus plug gage machined from tool steel for dimensional inspection of bored, drilled, and reamed holes. The gage checks a nominal diameter of 4.48 mm with a tolerance of 0.00508 mm and a surface finish of 10 microinch, delivering the precision required for go inspection work on the shop floor or in a quality lab. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for ISO-compliant and AS9100-registered facilities. The overall length is 2.0000 inches. Machinists, quality inspectors, and metrology technicians are the primary users.

This plug gage is suited for go inspection applications where a controlled hole diameter must be verified before assembly. It is compatible with standard gage handle sets and can be used alongside set micrometers, verniers, and other calibrated measuring devices during in-process or final inspection. The small diameter range makes it appropriate for precision components in aerospace, medical device, automotive, and general machining environments where tight bore tolerances are routine.

Key Features

• 4.48 mm nominal diameter with 0.00508 mm Class ZZ Plus tolerance
• 10 microinch surface finish for consistent, repeatable contact measurement
• Tool steel construction for wear resistance during production inspection cycles
• Includes Certificate of Accuracy with NIST traceability for audit and calibration records
• Conforms to ASME B89.1 dimensional standards
• Compatible with go inspection setups and standard gage handle systems

Compatibility

Designed for use in go inspection applications and compatible with set micrometers, verniers, and other measuring devices per the manufacturer specification. Fits standard plug gage handle sets sized for small-diameter gages.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no power source or lockout procedure is required. Store the gage in its protective case when not in use to prevent nicks and surface contamination that can affect accuracy. Clean the gage and the bore with a lint-free cloth before each use. Calibration intervals should follow your facility quality management system and ASME B89.1 guidelines.