Spi 29-324-1 Class Zz Plus Plug Gage 0.324 in

Product Description

The SPI 29-324-1 is a Class ZZ Plus plug gage used to verify the dimensional accuracy of drilled, reamed, or bored holes with a nominal diameter of 0.324 inches. Manufactured from steel, this go/no-go style gage provides a tolerance of 0.0002 inches, meeting the precision demands of inspection and quality control work in machine shops, manufacturing facilities, and general metalworking environments. Machinists, quality control inspectors, and tool-and-die professionals use plug gages as a fast, reliable method to confirm hole size without measuring instruments that require calibration setup time.

This gage is suited for use in production inspection settings where consistent hole verification is required across multiple parts or runs. It applies wherever tight hole tolerances must be confirmed, including machined components, fixture fabrication, and precision assembly work. The 0.324-inch nominal diameter targets a common inch-series hole size encountered in general machining and light manufacturing applications.

Key Features

• Class ZZ Plus tolerance rating for precision hole inspection
• 0.0002-inch tolerance for reliable go/no-go verification
• 0.324-inch nominal measurement diameter
• Steel construction for durability in shop environments
• Compact and lightweight at 0.2 pounds for easy handheld use

Compatibility

Designed as a direct-use plug gage for inspecting holes with a nominal diameter of 0.324 inches in inch-series machined components and assemblies.

Installation Notes

Plug gages are used by machinists and quality inspectors and require no installation. Store the gage in a clean, dry location and avoid dropping or impacting the gage ends, as this can alter the calibrated diameter. Clean the gage and the workpiece hole before use to ensure accurate readings. Handle with care to prevent corrosion; light oil storage is recommended when the gage is not in regular use.