Vermont Gage 101300500 Class Zz Plug Gage Set 250 Pc

Product Description

The VERMONT GAGE 101300500 is a Class ZZ plug gage set covering a measurement range of 0.2515 to 0.5005 inches in diameter, with a plus tolerance of 0.000200 inches per gage. The set contains 250 individual steel plug gages and ships with a Certificate of Accuracy traceable to NIST standards. Class ZZ plug gages are the working-grade standard for production inspection environments where repeated use against machined holes, slots, and bores is required. Machinists, quality control technicians, and tool-room personnel rely on sets like this for fast, reliable GO-gage inspection without the setup time of variable measuring instruments.

This set is suited for a wide range of precision measurement tasks including checking hole diameters, measuring slot widths and locations, calculating distances between holes, and setting micrometers, verniers, and other calibrated measuring devices. The 250-piece range makes it practical for production shops, tool rooms, and inspection departments that encounter varied hole sizes across a 0.2515 to 0.5005 inch span. Steel construction provides durability under frequent handling in industrial environments.

Key Features

• 250-piece set covering 0.2515 to 0.5005 inches diameter range
• Class ZZ tolerance of plus 0.000200 inches per gage
• NIST traceable Certificate of Accuracy included with set
• Steel construction for durability in production and tool-room use
• Supports multiple applications: GO gaging, hole diameter inspection, slot measurement, and instrument setting

Compatibility

Designed as a standard Class ZZ working plug gage set suitable for use with any precision bore, hole, or slot inspection application falling within the 0.2515 to 0.5005 inch diameter range.

Installation Notes

Plug gages are typically handled by quality control technicians and machinists in accordance with shop inspection procedures. Before use, inspect each gage for burrs, surface damage, or contamination that could affect measurement accuracy. Store gages in the provided case away from moisture to prevent corrosion of the steel members. Periodic recalibration against NIST traceable standards is recommended to maintain measurement integrity over time.