Spi 19-334-2 Class Zz Minus Plug Pin Gage 0.334 in

Product Description

The SPI 19-334-2 is a Class ZZ minus plug pin gage with a nominal diameter of 0.334 inches and a tolerance of 0.0002 inches. It is used to verify bore and hole dimensions to a go/no-go standard in production and inspection environments. The gage is manufactured from steel for durability and dimensional stability under repeated use. Class ZZ is the standard tolerance class for general-purpose inspection gaging, making this tool a working gage suited for shop-floor quality control and incoming inspection tasks. Machinists, quality technicians, and tool-and-die professionals are the primary users of this type of gage.

This plug gage is suited for checking drilled, reamed, or bored holes in metal and other materials where a 0.334-inch nominal diameter is the target dimension. It fits standard gage handle sets and is used in both job-shop and production environments where repeatable, traceable measurement is required. The minus designation means the gage is manufactured to the lower allowable tolerance boundary, consistent with Class ZZ go-gage application. It is a single-member gage intended for use with a compatible handle.

Key Features

• Class ZZ tolerance class — standard for general-purpose shop and inspection use
• Minus designation for lower tolerance boundary go-gage application
• 0.334-inch nominal diameter with 0.0002-inch tolerance
• Steel construction for dimensional stability and wear resistance
• Compatible with standard plug gage handles for single-member use

Compatibility

Designed as a standard single-member Class ZZ minus plug pin gage for use with compatible gage handles sized for the 0.334-inch diameter range. No specific system or model compatibility was stated in the product data.

Installation Notes

Plug pin gages are handled by quality technicians and machinists and require no power or special tools for use. Clean the gage and bore surfaces before inspection to prevent debris from affecting readings. Do not force the gage through a hole — excessive force can damage the gage land and affect calibration. Store in a protective case away from temperature extremes to preserve dimensional integrity.