Spi 29-468-6 Class Zz Plus Plug Gage 0.468 in

Product Description

The SPI 29-468-6 is a Class ZZ Plus plug gage used to verify the diameter of machined holes and bores to tight dimensional tolerances. It is a go/no-go style inspection tool machined from steel and designed for use in quality control, toolroom, and production floor environments. With a nominal measurement diameter of 0.468 inches and a tolerance of 0.0002 inches, this gage is suited for applications requiring precise hole acceptance criteria. Machinists, quality inspectors, and toolroom technicians use plug gages to confirm that drilled, reamed, or bored features fall within specification before a part advances to the next stage of production.

The SPI 29-468-6 is used in general manufacturing, metalworking shops, and precision machining operations where hole diameter verification is a routine inspection step. It is appropriate for both production-volume inspection and low-volume toolroom checks. Class ZZ Plus gages are typically used for inspection of commercial-tolerance holes where a working gage of proven accuracy is required. This gage is sold individually and is suitable for bench or handheld use at the point of inspection.

Key Features

• Nominal measurement diameter of 0.468 inches for direct hole verification
• Class ZZ Plus tolerance of 0.0002 inches provides reliable acceptance criteria
• Steel construction for durability in production and toolroom environments
• Compact and lightweight at 0.2 pounds for easy handheld use
• Single-piece unit ready for immediate use without additional setup

Compatibility

Designed as a standard working plug gage for inspection of machined holes with a nominal diameter of 0.468 inches in metalworking, manufacturing, and toolroom applications.

Installation Notes

Plug gages are used by quality inspectors and machinists and require no installation. Before use, clean the gage and the hole being inspected to remove chips, coolant, and debris that could affect the measurement result. Handle the gage carefully to avoid dropping or striking it against hard surfaces, as impact damage can alter the gage diameter and invalidate measurements. Store the gage in a protective case or pouch when not in use to maintain accuracy.