Spi 29-752-3 Class Zz Plus Plug Gage 0.752 in

Product Description

The SPI 29-752-3 is a Class ZZ Plus plug gage used to verify the inside diameter of machined holes to a nominal size of 0.752 inches. It holds a tolerance of 0.0002 inches, making it appropriate for go/no-go inspection work in production and quality-control environments. Constructed from steel, it is built to withstand repeated use in shop and inspection settings. Machinists, toolmakers, and quality technicians use plug gages like this one to confirm that bored, drilled, or reamed holes fall within the required dimensional tolerance before parts move to the next stage of assembly.

This gage is suited for use in manufacturing shops, machine shops, and inspection departments where hole diameter verification is a routine part of the quality process. It is applicable wherever a 0.752-inch nominal bore must be confirmed to meet specification, including work on fixtures, housings, or mechanical assemblies that require close-tolerance fits.

Key Features

• Nominal measurement diameter of 0.752 inches for precise go/no-go inspection
• Class ZZ Plus tolerance of 0.0002 inches for reliable dimensional verification
• Steel construction for durability in production and shop environments
• Compact and lightweight at 0.2 pounds for easy handling during inspection
• Single-piece package quantity ready for immediate use out of the box

Compatibility

Designed as a standard Class ZZ Plus plug gage for go/no-go inspection of 0.752-inch nominal inside diameters in general manufacturing and machining applications.

Installation Notes

Plug gages are used by quality technicians and machinists and require no permanent installation. Clean the gage and the bore being checked before use to prevent debris from causing false readings. Do not force the gage into an undersized hole, as this can damage both the gage and the workpiece. Store the gage in a protective case away from other metal tooling to preserve its calibrated surface finish and dimensional accuracy.