Vermont Gage 901200300 Class Zz Plug Gage Set 240 Pc

Product Description

The VERMONT GAGE 901200300 is a Class ZZ plug gage set used to measure hole diameters, gage slot widths and locations, calculate distances between holes, and set micrometers, verniers, and other precision measuring devices. The set covers a range from 0.011 inches to 0.25 inches and holds a minus tolerance of 0.000200 inches (0.0002 mm), making it suitable for NO-GO gaging inspection and dimensional verification work in machine shops and quality control environments. All 240 pieces are steel with a black oxide finish. A Certificate of Accuracy with NIST Traceable documentation is included with the set.

This plug gage set is intended for use in industrial and manufacturing settings where precise bore and hole measurement is required. Machinists, quality control inspectors, and toolroom technicians typically use sets in this range for incoming inspection, in-process checks, and calibration of measuring instruments. The 240-piece count and wide diameter range make it practical for shops that work across a broad variety of part tolerances and hole sizes.

Key Features

• Class ZZ tolerance class with a minus tolerance of 0.000200 inches for consistent NO-GO gaging
• Range of 0.011 to 0.25 inches covers a wide variety of small-bore applications
• Steel construction with black oxide finish for corrosion resistance and durability
• 240-piece set provides broad coverage in a single kit
• Certificate of Accuracy included; NIST Traceable standard
• Suitable for setting micrometers, verniers, and other measuring devices

Compatibility

Designed as a standard Class ZZ plug gage set for use with any measuring or inspection application requiring NIST Traceable go and no-go gaging within the 0.011 to 0.25 inch diameter range.

Installation Notes

Plug gages are handled and used by qualified machinists or quality control technicians. Clean and inspect each gage pin before use to avoid measurement errors caused by debris or surface damage. Store the set in its case when not in use to protect the black oxide finish and maintain dimensional integrity. Do not force a plug gage into a bore; resistance indicates the feature is at or beyond the tolerance limit.