Vermont Gage 901300400 Class Zz Plug Gage Set 190 Pc

Product Description

The VERMONT GAGE 901300400 is a Class ZZ plug gage set designed for precision hole measurement and inspection work across a range of diameters from 0.0615 to 0.2505 inches. The set carries a plus tolerance of 0.0002 inches, meeting NIST Traceable standards for dimensional accuracy. Each plug gage features a black oxide finish on steel construction, providing corrosion resistance and reduced glare during use. The 190-piece set covers a broad size range, making it a practical bench reference for machinists, quality control technicians, and toolroom professionals who need reliable GO gaging capability without switching between multiple gage sets.

This set is suited for light manufacturing, machine shop inspection, and quality assurance environments where hole diameter verification is a routine task. Common applications include measuring hole diameters, gaging slot widths and locations, calculating distances between holes, and setting micrometers, verniers, and other measuring devices. The broad size range makes it appropriate for both production floor inspection and toolroom calibration work in residential and commercial fabrication settings.

Key Features

• Class ZZ tolerance standard with plus tolerance of 0.0002 inches for consistent GO gage inspection
• Range spans 0.0615 to 0.2505 inches across 190 individual plug gages
• Black oxide finish on steel for corrosion resistance and reduced surface glare
• Includes Certificate of Accuracy with NIST Traceable documentation
• Supports multiple applications: hole diameter measurement, slot gaging, micrometer and vernier setting, and hole-to-hole distance calculation

Compatibility

Designed as a standard Class ZZ plug gage set suitable for use with conventional gage blocks, micrometer setting fixtures, and inspection setups that require NIST Traceable dimensional references in the 0.0615 to 0.2505 inch diameter range.

Installation Notes

Plug gages are handled and used by quality control technicians and toolroom machinists; no installation in a fixed system is required. Store gages in their designated case to prevent damage to precision ground surfaces. Clean contact surfaces before and after each use to maintain accuracy and prevent corrosion. Handle with care to avoid dropping, as impact damage can alter gage geometry and invalidate dimensional accuracy.