Spi 29-733-3 Class Zz Plus Plug Gage 0.733 in

Product Description

The SPI 29-733-3 is a Class ZZ Plus plug gage used to verify the dimensional accuracy of drilled, reamed, or bored holes with a nominal diameter of 0.733 inches. Machined from steel, this go/no-go style gage provides a tolerance of 0.0002 inches, making it suitable for production inspection and quality control work where close-tolerance verification is required. Metrology technicians, toolroom machinists, and quality inspectors use plug gages like the 29-733-3 to confirm that workpiece bores fall within specified limits before parts advance to assembly.

Class ZZ Plus plug gages are commonly used in light manufacturing, job shop machining, and production inspection environments. They are appropriate for verifying hole sizes in metal and plastic components where moderate-precision tolerances apply. The 0.733-inch diameter makes this gage well suited for applications involving standard fastener bores, dowel pin holes, and similar features requiring consistent dimensional verification across production runs.

Key Features

• 0.733-inch nominal diameter for direct bore verification at that dimension
• Class ZZ Plus tolerance grade at 0.0002 inches for reliable go/no-go inspection
• Steel construction for durability in production and toolroom environments
• Compact and lightweight at 0.2 pounds for easy single-hand use
• Single-piece packaging suitable for individual toolroom or inspection station use

Compatibility

Designed as a standard Class ZZ Plus plug gage for verifying bored, drilled, or reamed holes with a nominal diameter of 0.733 inches in production inspection and quality control applications.

Installation Notes

Plug gages are handled and applied by metrology technicians or quality inspectors and require no power source or installation. Keep the gage clean and lightly oiled when not in use to prevent corrosion and maintain dimensional accuracy. Do not force the gage into a bore; resistance indicates the hole is undersize. Store in a protective case away from temperature extremes to prevent thermal expansion errors during measurement.