Spi 29-563-4 Class Zz Plus Plug Gage 0.563 Inch

Product Description

The SPI 29-563-4 is a Class ZZ Plus plug gage designed to verify the dimensional accuracy of drilled, reamed, or bored holes with a nominal diameter of 0.563 inches. It holds a tolerance of 0.0002 inches, placing it in the tighter-tolerance ZZ Plus classification used for inspection work requiring repeatable go/no-go verification. Machined from steel for durability and wear resistance, this gage is a standard tool for quality control personnel, machinists, and tooling inspectors working in production or job-shop environments.

Class ZZ Plus plug gages are used in manufacturing and inspection settings where hole diameter conformance must be confirmed against a known standard. This gage is suited for incoming inspection, in-process checks, and final inspection of machined components. It is appropriate for both light production and metrology lab applications where accurate hole sizing at 0.563 inches is required.

Key Features

• Nominal measurement diameter of 0.563 inches for precise hole verification
• Class ZZ Plus tolerance of 0.0002 inches for tighter-than-standard accuracy
• Steel construction for wear resistance and long service life
• Go/no-go plug gage format supports fast pass-fail inspection workflow
• Lightweight at 0.2 pounds, suitable for bench or handheld use

Compatibility

Designed as an OEM-style inspection gage for use in any application requiring go/no-go hole verification at a nominal diameter of 0.563 inches in accordance with Class ZZ Plus gage tolerancing standards.

Installation Notes

Plug gages are handled and used by machinists, quality technicians, and metrologists. Store the gage in a clean, dry environment to prevent corrosion and dimensional drift. Do not force the gage into a hole under inspection, as this can damage both the gage and the workpiece. Calibrate or verify the gage against a traceable master at intervals appropriate to your quality system requirements.