Vermont Gage 101200400 Class Zz Plug Gage Set 190 Pc

Product Description

The VERMONT GAGE 101200400 is a 190-piece Class ZZ plug gage set covering a diameter range of 0.061 to 0.25 inches. Each gage is manufactured from steel and held to a minus tolerance of 0.0002 inches, making the set suitable for precision hole inspection and measuring instrument calibration. Class ZZ designation identifies these as working-grade gages appropriate for general inspection use on the shop floor or in a quality lab. Every set ships with a Certificate of Accuracy that is NIST traceable, providing the documentation chain required in most ISO and AS9100 quality environments. Machinists, quality technicians, and tool-room personnel are the primary users of this type of set.

This plug gage set is used wherever precise hole diameter verification is required. Typical applications include measuring hole diameters, calculating distances between holes, checking slot widths and locations, performing NO-GO gaging inspection, and setting micrometers, verniers, and other measuring devices to a known reference. The 190-piece range makes the set practical for facilities that work with a wide variety of hole sizes within the 0.061 to 0.25 inch window, reducing the need for individual gage purchases across common inch-size increments.

Key Features

• 190-piece set covers 0.061 to 0.25 inches in diameter
• Class ZZ working-grade tolerance for general shop and inspection use
• Minus tolerance of 0.0002 inches per gage
• Steel construction for durability in production and lab environments
• NIST traceable Certificate of Accuracy included with each set
• Supports NO-GO gaging, hole measurement, and instrument calibration workflows

Compatibility

Designed as a working-gage replacement or new-installation set for quality inspection stations requiring Class ZZ plug gages in the 0.061 to 0.25 inch diameter range.

Installation Notes

Plug gages should be handled and stored following ASME B89.1.5 guidelines to preserve tolerance integrity. Clean gaging surfaces before and after each use to prevent debris from affecting measurements or causing wear. Keep gages lightly oiled when stored to prevent corrosion on steel surfaces. Recalibration intervals should be established based on frequency of use and the traceability requirements of the applicable quality standard.