Spi 29-833-1 Class Zz Plus Plug Gage 0.833 in

Product Description

The SPI 29-833-1 is a Class ZZ Plus plug gage designed to verify bore diameters with a nominal measurement of 0.833 inches. Built from steel, this go/no-go style inspection tool delivers a tolerance of 0.0002 inches, making it appropriate for shop-floor and inspection-room use where hole size conformance must be confirmed quickly. Machinists, toolroom technicians, and quality control inspectors use plug gages like this one to check drilled, reamed, or bored holes against specified limits without the need for electronic measurement equipment.

This gage is suited for use in machine shops, manufacturing facilities, and production environments where dimensional verification of round bores is a routine part of the inspection process. Class ZZ Plus gages are commonly applied in less critical tolerance applications where a durable, cost-effective inspection tool is preferred over tighter-class alternatives. The 0.833-inch diameter size covers a specific bore dimension found across a range of machined components.

Key Features

• Nominal measurement diameter of 0.833 inches for direct bore inspection
• Tolerance of 0.0002 inches for reliable dimensional verification
• Steel construction for durability under repeated shop use
• Class ZZ Plus rating suited for general-purpose inspection applications
• Compact and lightweight at 0.2 pounds for easy hand use

Compatibility

Designed as an OEM-style replacement or direct-use plug gage for inspection of 0.833-inch nominal bore diameters in general machining and quality control applications.

Installation Notes

Plug gages are handled and used by machinists or quality inspectors and require no power source or fastening. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the steel surface. Do not force the gage into a bore; apply only light hand pressure to avoid damaging the gage or the workpiece. Store in a protective case away from temperature extremes to maintain dimensional stability.