Spi 29-567-5 Class Zz Plus Plug Gage 0.567 Inch

Product Description

The SPI 29-567-5 is a Class ZZ Plus plug gage designed to verify bore and hole dimensions to a nominal diameter of 0.567 inches. Built from steel, it holds a tolerance of 0.0002 inches, making it appropriate for production inspection and quality control workflows where precise go/no-go measurement is required. Class ZZ designates a tolerance grade suited for inspection of general commercial work. Machinists, toolroom technicians, and quality control inspectors use plug gages like this one to confirm that drilled, reamed, or bored features fall within specification before parts advance to the next stage of production.

This gage is used in machine shops, manufacturing facilities, and toolrooms where dimensional verification of round through-holes or blind bores is part of standard inspection procedure. It is well suited for checking finished holes in metal components where a 0.567-inch nominal bore is called out on the part drawing. The small form factor and low weight of 0.2 pounds make it easy to handle at the bench or on the floor.

Key Features

• Class ZZ Plus tolerance grade for general commercial inspection work
• 0.567-inch nominal measurement diameter
• 0.0002-inch tolerance for consistent, repeatable go/no-go verification
• Steel construction for durability in production environments
• Lightweight at 0.2 pounds for easy single-hand use

Compatibility

Designed as an OEM-style replacement or direct-use plug gage for applications requiring verification of a 0.567-inch nominal bore diameter in standard Class ZZ Plus inspection workflows.

Installation Notes

Plug gages are handled and applied by machinists or quality technicians following standard metrology practices. Clean the gage and the bore before use to prevent debris from affecting the reading. Never force a plug gage into a hole; apply light, steady hand pressure only. Store the gage in its case away from other metal tools to protect the ground surface from nicks and corrosion.