Vermont Gage 111298400 Class Zz Minus Plug Pin Gage 0.9840 in

Product Description

The VERMONT GAGE 111298400 is a Class ZZ Minus plug pin gage machined from steel and used to verify bore and hole diameters in precision inspection work. Measuring 0.9840 inches in diameter with an overall length of 2 inches, this pin gage is built to a tolerance of 0.0002 inches, making it suitable for NoGo inspection applications where confirming a dimension is outside the acceptable limit is the primary task. Each unit ships with a Certificate of Accuracy with NIST Traceability, supporting documentation requirements in quality-controlled environments. Machinists, quality control technicians, and toolroom inspectors are the primary users.

This pin gage is used in manufacturing, toolroom, and inspection environments where bore diameter verification is performed with hand gages or on a surface plate. It is commonly applied when setting or verifying micrometers, verniers, and other measuring devices to a known reference dimension. The Class ZZ designation places this gage in the working-gage category, appropriate for production floor and general inspection use rather than master or reference applications. The 0.9840 inch size targets applications involving near-1-inch nominal bores.

Key Features

• Class ZZ Minus tolerance designation — built for NoGo inspection and working-gage applications
• 0.0002 inch tolerance for reliable dimensional verification
• Steel construction for durability in production and toolroom environments
• 10 micro surface finish for consistent gage-to-bore contact
• Includes Certificate of Accuracy with NIST Traceability for quality documentation compliance
• Compatible with micrometers, verniers, and other precision measuring devices as a reference standard

Compatibility

Designed for use as a NoGo plug gage and as a setting reference for micrometers, verniers, and other hand measuring devices requiring a 0.9840 inch diameter reference.

Installation Notes

Pin gages are handled and used by quality control technicians and machinists; no power tools or utilities need to be shut off prior to use. Keep the gage clean and lightly oiled when stored to prevent corrosion on the steel surface. Do not force the gage into a bore — apply light, consistent hand pressure only to avoid measurement error or gage damage. Calibration and handling practices should follow your facility quality management procedures and applicable metrology standards.