Spi 29-941-2 Class Zz Plus Plug Gage 0.941 in

Product Description

The SPI 29-941-2 is a Class ZZ Plus plug gage designed for precision bore and hole measurement in industrial and trade applications. The gage measures a nominal diameter of 0.941 inches with a tolerance of 0.0002 inches, providing the tight measurement accuracy required for quality control, incoming inspection, and production verification. Constructed from steel, the 29-941-2 offers the durability and dimensional stability that metrology applications demand. It is used by machinists, toolroom technicians, and quality control professionals who need a reliable go/no-go reference for hole diameters in manufactured parts.

This plug gage is suited for use in machine shops, manufacturing facilities, and toolrooms where consistent hole diameter verification is part of the production or inspection process. The Class ZZ Plus classification places it in the standard range for general-purpose inspection gaging, making it appropriate for checking drilled, reamed, or bored holes to specification. It is a single-ended gage supplied individually and fits standard gage handle systems common in industrial settings.

Key Features

• Nominal measurement diameter of 0.941 inches for precise bore verification
• Tolerance of 0.0002 inches meets Class ZZ Plus accuracy requirements
• Steel construction provides dimensional stability and wear resistance
• Compact and lightweight at 0.2 pounds for easy bench and in-process use
• Single-unit packaging supports individual replacement or toolroom stocking

Compatibility

Designed as an OEM-style replacement or direct stocking gage for standard plug gage handle systems used in industrial inspection and toolroom environments.

Installation Notes

Plug gages are installed and used by machinists and quality control technicians following standard metrology practices. Before use, clean the gage and the bore being measured to remove chips, oil, or debris that could affect accuracy. Handle the gage carefully to avoid dropping or striking it, as impact damage can alter dimensional accuracy. Store in a protective case away from temperature extremes to maintain calibration stability.