Spi 29-099-9 Class Zz Plus Plug Gage 0.099 in Diameter

Product Description

The SPI 29-099-9 is a Class ZZ Plus plug gage designed for precision hole and bore measurement in machining and manufacturing environments. With a nominal measurement diameter of 0.099 inches and a tolerance of 0.0002 inches, this gage provides reliable go/no-go verification for tight-tolerance applications. Constructed from steel for dimensional stability and wear resistance, it is a straightforward toolroom instrument used by machinists, quality control technicians, and tool room professionals to confirm bore acceptance criteria quickly and accurately.

This plug gage is suited for use in production inspection, incoming material verification, and general toolroom quality assurance. It fits workflows where small-diameter bores must be checked against close tolerances. The 0.099-inch diameter range targets precision components commonly found in mechanical assemblies, hydraulic fittings, and instrumentation parts. Its compact size and single-piece construction make it practical for bench use or inline inspection on the shop floor.

Key Features

• Class ZZ Plus tolerance rating for reliable go/no-go inspection of small-diameter bores
• Nominal measurement diameter of 0.099 inches for tight-clearance applications
• Tolerance held to 0.0002 inches for high-accuracy verification
• Steel construction provides durability and dimensional stability under normal shop conditions
• Single-piece plug gage format requires no setup or calibration equipment for basic use

Compatibility

Designed as a standard Class ZZ Plus plug gage for inspection of 0.099-inch nominal diameter bores in general machining, toolroom, and quality control applications.

Installation Notes

Plug gages are handled and used by machinists and quality technicians following standard metrology practices. Store the gage in a clean, dry location away from contaminants that could affect measurement accuracy. Handle with clean hands or cotton gloves to prevent corrosion from skin oils. Verify the gage against a certified standard periodically to confirm it remains within calibration tolerances.