Spi 29-700-2 Class Zz Plus Plug Gage 0.7 Inch

Product Description

The SPI 29-700-2 is a Class ZZ Plus plug gage designed for precise bore and hole measurement in industrial and trade applications. It measures a nominal diameter of 0.7 inches with a tolerance of 0.0002 inches, providing the accuracy required for quality inspection and dimensional verification. Constructed from steel, this plug gage delivers the durability and wear resistance expected in production and inspection environments. It is used by machinists, quality control technicians, and tool-and-die professionals who need reliable go/no-go or dimensional reference measurement at the bench or on the floor.

This plug gage is suited for verifying hole and bore dimensions in metal fabrication, machining, and manufacturing inspection settings. It fits into standard Class ZZ Plus tolerance applications where tighter gage tolerances are required than basic Class ZZ specifications. The 29-700-2 is packaged individually and is appropriate for both production line spot-checking and toolroom inspection work.

Key Features

• Nominal measurement diameter of 0.7 inches for precise bore verification
• Class ZZ Plus tolerance rating at 0.0002 inches for high-accuracy inspection
• Steel construction for durability and long service life in production environments
• Lightweight at 0.2 pounds for easy single-hand use during inspection
• Individual packaging supports clean handling and storage

Compatibility

Designed as an OEM-style dimensional inspection tool for use in standard Class ZZ Plus plug gage applications requiring a 0.7-inch nominal bore diameter measurement.

Installation Notes

Plug gages are handled and used by quality control inspectors and machining professionals, not installed in mechanical systems. Clean the gage and the bore surface before use to prevent measurement error from debris or oil buildup. Store the gage in its case or on a dedicated holder to protect the precision-ground surface from damage. Do not force the gage into undersized bores, as this can damage the gage and produce inaccurate readings.