Vermont Gage 112105900 Class Zz Plus Plug Gage 5.9mm

Product Description

The VERMONT GAGE 112105900 is a Class ZZ Plus plug gage designed for precision bore inspection in manufacturing and quality control environments. Machined from tool steel and finished to a 10 microfinish surface, this gage checks whether a drilled, reamed, or bored hole falls within acceptable dimensional limits. The nominal diameter is 5.9 mm with a tolerance of 0.00508 mm (0.005 mm), conforming to ASME B89.1 standards. Overall length is 2.0000 inches. Each unit ships with a Certificate of Accuracy traceable to NIST. Machinists, quality technicians, and inspection personnel use this gage in production and incoming inspection workflows.

This plug gage is suited for go inspection of 5.9 mm diameter bores in both production and tool-room settings. It is also used to set and verify micrometers, verniers, and other measuring devices requiring a traceable reference standard. Typical applications include checking machined holes in metal components before assembly. The ASME B89.1 conformance and NIST-traceable certificate make it appropriate for quality systems requiring documented calibration references.

Key Features

• Class ZZ Plus tolerance of 0.00508 mm for high-accuracy go inspection
• Tool steel construction for wear resistance in production environments
• 10 microfinish surface for consistent, repeatable contact with bore walls
• Conforms to ASME B89.1 dimensional standards
• Includes Certificate of Accuracy with NIST traceability
• Compact overall length of 2.0000 inches for easy handling

Compatibility

Designed as an OEM-style go plug gage for 5.9 mm diameter bore inspection; also compatible for use in setting micrometers, verniers, and other measuring devices requiring a traceable cylindrical reference.

Installation Notes

This gage is handled and used by quality technicians and machinists - no power tools or utilities need to be shut down prior to use. Store in a protected case away from moisture and temperature extremes to maintain calibration integrity. Do not force the gage into a bore; apply only light, consistent hand pressure to avoid wear or damage to the gage or workpiece. Periodic recalibration against a NIST-traceable standard is recommended per your facility quality schedule.