Vermont Gage 911137500 Class Zz Plus Plug Pin Gage 3/8 in

Product Description

The VERMONT GAGE 911137500 is a Class ZZ Plus plug pin gage with a 3/8-inch diameter, manufactured from steel with a black oxide finish. Plug pin gages are precision measurement tools used to verify hole diameters, tolerances, and go/no-go acceptance criteria in machined or fabricated workpieces. The Class ZZ Plus designation indicates a tolerance grade suited for inspection and quality control applications. Each unit ships with a Certificate of Accuracy with NIST Traceability, confirming the gage has been validated against national measurement standards. Machinists, quality control inspectors, and toolroom technicians are the primary users of this instrument.

This plug pin gage is used in manufacturing, machine shop, and inspection environments where hole diameter verification is required. It is appropriate for checking drilled, reamed, or bored holes in metal, plastic, or composite workpieces. The 3/8-inch diameter makes it suitable for a wide range of common fastener and bore applications. The black oxide finish provides corrosion resistance during regular bench and floor use. A Certificate of Accuracy with NIST Traceability is included, supporting quality management system documentation requirements in ISO or AS9100 regulated facilities.

Key Features

• 3/8-inch diameter Class ZZ Plus tolerance grade for precision hole inspection
• Steel construction with black oxide finish for corrosion resistance and durability
• Includes Certificate of Accuracy with NIST Traceability for quality system compliance
• Lightweight at 0.1 pounds for easy single-hand use at the bench or on the floor
• Sold as an individual gage, quantity of one per unit

Compatibility

Designed as an OEM-style replacement or supplemental plug pin gage for use in standard go/no-go gage sets and precision inspection tooling applications requiring a 3/8-inch Class ZZ Plus diameter gage.

Installation Notes

Plug pin gages require no installation but should be handled with clean, dry hands or cotton inspection gloves to prevent surface contamination that can affect measurement accuracy. Store the gage in a protective case away from other metal tooling to avoid nicking the precision ground surface. Periodic cleaning with a lint-free cloth and light instrument oil will maintain the black oxide finish and measurement integrity. Calibration and re-certification intervals should follow your facility quality management procedures.