Vermont Gage 901100900 Class Zz Plug Gage Set 84 Pc

Product Description

The VERMONT GAGE 901100900 is a Class ZZ plug gage set designed to measure and verify hole diameters, slot widths, and distances between holes across a range of 0.833 to 0.916 inches. The set includes 84 individual plug gages manufactured from steel with a black oxide finish. Each gage is held to a plus tolerance of 0.0002 inches, meeting Class ZZ standards for inspection-grade dimensional verification. A Certificate of Accuracy with NIST traceability is included with the set. This type of tooling is standard equipment for quality control personnel, machinists, and tool-and-die trades performing precision inspection work.

This plug gage set is suited for use in machine shops, manufacturing facilities, and quality inspection departments handling close-tolerance work. Typical applications include GO gaging inspection of machined bores, setting micrometers and vernier calipers to known references, checking slot widths and locations, and calculating distances between holes. The 84-piece range provides coverage across the full 0.833 to 0.916 inch diameter span, making it practical for shops running a variety of bore sizes within that window.

Key Features

• Class ZZ tolerance rating at plus 0.0002 inches per gage
• 84-piece set covering 0.833 to 0.916 inches diameter range
• Steel construction with black oxide finish for corrosion resistance and reduced glare
• NIST traceable Certificate of Accuracy included
• Suitable for GO gaging, micrometer setting, hole diameter measurement, and slot location verification

Compatibility

Designed as a standard Class ZZ plug gage set for use with any inspection process requiring hole diameter verification in the 0.833 to 0.916 inch range, in accordance with recognized dimensional gaging standards.

Installation Notes

Plug gages are handled and used by qualified inspection personnel or machinists familiar with dimensional gaging practices. Store gages in the provided case and apply a light coat of rust-preventive oil when not in use. Clean bores thoroughly before gaging to prevent false readings or gage wear. Do not force a plug gage into a bore; excessive insertion force can damage both the gage and the workpiece.