Spi 29-462-9 Class Zz Plus Plug Gage 0.462 Inch

Product Description

The SPI 29-462-9 is a Class ZZ Plus plug gage designed to verify bore and hole diameters to a nominal measurement of 0.462 inches. It holds a tolerance of 0.0002 inches, making it suitable for close-tolerance inspection work in production and quality control environments. Constructed from steel for durability and dimensional stability, this plug gage is a go or no-go inspection tool used by machinists, toolmakers, and quality technicians to confirm that drilled, reamed, or bored features fall within specification.

This gage is used in machine shops, manufacturing facilities, and precision fabrication environments where hole size verification is required before assembly or further machining. Its compact form factor makes it easy to handle during high-volume inspection routines. The 0.462 inch diameter range is common in general mechanical and tooling applications where standard fractional or close-decimal bore sizes are specified.

Key Features

• Nominal measurement diameter of 0.462 inches for precise hole inspection
• Class ZZ Plus tolerance rating of 0.0002 inches for close-tolerance work
• Steel construction provides dimensional stability and wear resistance
• Compact plug gage form for fast, repeatable go or no-go inspection
• Lightweight at 0.2 pounds for easy single-hand use during inspection

Compatibility

Designed as an OEM-style replacement or direct-use plug gage for general precision inspection applications requiring a 0.462 inch nominal bore diameter check at Class ZZ Plus tolerance.

Installation Notes

Plug gages are handled by machinists and quality control inspectors and require no permanent installation. Clean the gage and the bore being inspected before use to prevent contamination from affecting the measurement. Do not force the gage into a bore; excessive insertion force can damage both the gage and the workpiece. Store in a protective case away from heat sources and moisture to preserve calibration and surface finish.