Vermont Gage 101200700 Class Zz Plug Gage Set 125 Pc

Product Description

The VERMONT GAGE 101200700 is a Class ZZ plug gage set covering a diameter range of 0.626 to 0.750 inches in 125 pieces. Each plug gage in the set is manufactured from steel and held to a minus tolerance of 0.0002 inches, making this set appropriate for dimensional inspection work where precise hole measurement is required. The set ships with a Certificate of Accuracy that is NIST traceable, confirming each member meets published Class ZZ limits. Machinists, quality technicians, and metrology professionals use sets like this to verify bore diameters, set transfer-measuring instruments, and perform NO-GO gaging inspection.

This plug gage set is suited for shop-floor and lab inspection environments handling parts with hole diameters between 0.626 and 0.750 inches. Typical applications include measuring hole diameters, calculating distances between holes, gaging slot widths and locations, and setting micrometers, verniers, and other measuring devices to a known reference. The 125-piece graduated range provides close step increments across the full span, reducing the need for interpolation between gage members. Both light manufacturing and precision machining operations use sets in this diameter class.

Key Features

• Class ZZ tolerance rating with a minus tolerance of 0.0002 inches per member
• 125-piece set covering 0.626 to 0.750 inches diameter range
• Steel construction for durability in production and inspection environments
• NIST traceable Certificate of Accuracy included with the set
• Supports NO-GO gaging inspection, hole diameter measurement, and instrument calibration
• Graduated step increments across the full range reduce interpolation needs

Compatibility

Designed as a standard Class ZZ plug gage set for use with any inspection fixture, gage block setup, or measuring instrument that accepts plug-style go and no-go gages in the 0.626 to 0.750 inch diameter range.

Installation Notes

Plug gages should be handled by quality technicians or toolroom professionals familiar with precision measurement practices. Clean gage members and the workpiece bore before use to prevent contamination from affecting readings. Store the set in its case away from temperature extremes and humidity to maintain dimensional stability. Do not force a plug gage into a bore; doing so can damage the gage surface and invalidate its accuracy.