Spi 29-605-3 Class Zz Plus Plug Gage 0.605 in

Product Description

The SPI 29-605-3 is a Class ZZ Plus plug gage machined to a nominal diameter of 0.605 inches with a tolerance of 0.0002 inches (0.0002 mm). Plug gages of this class are used to verify that a drilled, reamed, or bored hole falls within a specified dimensional tolerance. The ZZ classification is the most commonly used standard for general-purpose inspection work in production and job shop environments. The 29-605-3 is constructed from steel and weighs approximately 0.2 pounds. It is a go/no-go style reference tool handled by quality control technicians, machinists, and tool-and-die professionals.

This gage is suited for use in machine shops, manufacturing facilities, and production lines where consistent hole-size verification is required. It is applicable to inspection of components produced by drilling, reaming, boring, or broaching operations. Class ZZ plug gages are standard in general-purpose shop inspection and are not intended for precision-grade or master gage applications. The compact size and low weight make it easy to handle on the shop floor or at an inspection bench.

Key Features

• Nominal measurement diameter of 0.605 inches for precise hole inspection
• Class ZZ Plus tolerance of 0.0002 inches for general-purpose production inspection
• Steel construction for durability and wear resistance in shop environments
• Lightweight at 0.2 pounds for comfortable single-hand use
• Sold individually, one gage per package

Compatibility

Designed for general-purpose hole inspection wherever a 0.605-inch nominal diameter and Class ZZ Plus tolerance standard apply. Verify fitment against your specific drawing tolerances before use.

Installation Notes

Plug gages do not require installation in the traditional sense, but proper handling and storage are essential to maintaining calibration accuracy. Clean the gage and the workpiece bore before use to prevent false readings caused by chips or debris. Store the gage in its protective case when not in use to avoid nicks or surface damage that could affect dimensional accuracy. Periodic recalibration against a traceable master standard is recommended per your quality management system requirements.