Spi 29-466-0 Class Zz Plus Plug Gage 0.466 in Dia

Product Description

The SPI 29-466-0 is a Class ZZ Plus plug gage used to verify bore and hole diameters to a precise 0.466-inch nominal size. It holds a tolerance of 0.0002 inches, making it suitable for go/no-go inspection work in production and quality-control environments. Machined from steel, this gage provides consistent, repeatable measurements when checking machined bores, drilled holes, or reamed openings. Machinists, tool-and-die makers, and quality technicians use plug gages like this one as a fast, reliable alternative to inside micrometers for high-volume inspection tasks.

This plug gage is used in manufacturing, machine shops, and precision fabrication settings where hole diameter verification is required before assembly or finishing. It is well suited for inspecting toleranced bores in metal components where maintaining a tight fit is critical. The Class ZZ Plus designation indicates a standard tolerance grade appropriate for general-purpose inspection at the production floor level.

Key Features

• 0.466-inch nominal diameter for direct bore inspection at that size
• 0.0002-inch tolerance for precise go/no-go verification
• Steel construction for durability and wear resistance during repeated use
• Class ZZ Plus designation meets standard tolerance grades for production inspection
• Compact and lightweight at 0.2 pounds for easy one-handed handling

Compatibility

Designed as a general-purpose plug gage for inspecting 0.466-inch nominal diameter bores and holes in machined metal components across production and quality-control applications.

Installation Notes

Plug gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Before use, clean the gage and the bore being inspected to remove chips, coolant, or debris that could affect the reading. Apply light, consistent insertion force only — never force a plug gage into a bore, as this can damage the gage or the workpiece. Store the gage in its case or a protective sleeve when not in use to prevent surface damage.