Vermont Gage 112306590 Class Zz Plus Plug Gage 6.59 Mm

Product Description

The VERMONT GAGE 112306590 is a Class ZZ Plus plug gage machined from tool steel for dimensional go inspection of bored holes and machined features. It checks whether a hole or bore falls within the specified tolerance range, confirming the workpiece is acceptable for assembly or further machining. The gage measures 6.59 mm in diameter with a tolerance of 0.00508 mm, providing the tight dimensional control required in precision metrology work. Overall length is 2.0000 inches. A Certificate of Accuracy with NIST traceability is included with each unit, supporting quality-management and calibration documentation requirements.

This plug gage is suited for production floor inspection, tool room verification, and metrology lab use across manufacturing, machining, and precision fabrication environments. It is compatible with go inspection procedures and can be used alongside set micrometers, verniers, and other calibrated measuring devices. The 10 microfinish surface coating reduces wear and maintains dimensional integrity over repeated use cycles. Machinists, quality technicians, and metrologists performing incoming inspection, in-process checks, or final part acceptance will find this gage appropriate for their workflow.

Key Features

• Class ZZ Plus tolerance grade for go inspection of precision bored holes
• 6.59 mm diameter with 0.00508 mm tolerance for tight dimensional control
• Tool steel construction for durability and dimensional stability
• 10 microfinish surface coating minimizes wear during repeated use
• Certificate of Accuracy with NIST traceability included for calibration records
• Conforms to ASME B89.1 standard

Compatibility

Designed for use as a go plug gage in standard hole inspection procedures. Compatible with set micrometers, verniers, and other calibrated measuring devices per ASME B89.1 inspection practices.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no permanent installation is required. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surface. Do not force the gage into an undersized hole, as this can damage the gage or the workpiece and invalidate dimensional readings. Store in a protective case away from temperature extremes to preserve calibration integrity.