Vermont Gage 111145100 Class Zz Plus Plug Gage 0.451 in

Product Description

The VERMONT GAGE 111145100 is a Class ZZ Plus plug gage ground to a 0.451-inch nominal diameter with a tolerance of 0.0002 inches and a 10 microfinish surface. Manufactured from tool steel, this gage is used to verify bore and hole dimensions during precision inspection work. It meets ASME B89.1 standards and ships with a Certificate of Accuracy traceable to NIST. Machinists, quality technicians, and toolroom professionals use plug gages like this one to confirm whether a hole is within specification without relying on variable measuring instruments.

This plug gage is suited for go inspection applications across manufacturing, toolroom, and quality-control environments. It is compatible with calibration and verification routines involving set micrometers, verniers, and other precision measuring devices. The 0.451-inch diameter fits into the range commonly required for close-tolerance hole inspection in both production and incoming-inspection settings. The 2.0-inch overall length provides adequate grip and handling clearance for bench and hand-held use.

Key Features

• 0.451-inch nominal diameter ground to Class ZZ Plus tolerances
• 0.0002-inch tolerance for high-precision go inspection work
• 10 microfinish surface for consistent, repeatable contact
• Tool steel construction for hardness and wear resistance
• Meets ASME B89.1 dimensional standards
• Includes Certificate of Accuracy with NIST traceability

Compatibility

Designed for go inspection use with set micrometers, verniers, and other precision measuring devices as stated by the manufacturer. Suitable for any application requiring a Class ZZ Plus plug gage at 0.451-inch diameter per ASME B89.1.

Installation Notes

Plug gages are handled and used by quality technicians and machinists in toolroom or production inspection settings. 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 will cause premature wear or damage to the gage or workpiece. Store in a protective case away from temperature extremes to maintain calibration integrity.