Spi 29-583-2 Class Zz Plus Plug Gage 0.583 Inch

Product Description

The SPI 29-583-2 is a Class ZZ Plus plug gage designed for inspecting and verifying hole diameters to a nominal size of 0.583 inches. Built from steel, this go/no-go style gage delivers a tolerance of 0.0002 inches, making it suitable for production inspection tasks where dimensional accuracy is critical. Machinists, quality control technicians, and tool-and-die professionals use plug gages like this one to confirm drilled, reamed, or bored holes meet print specifications before parts advance down the production line.

Class ZZ Plus plug gages are typically used in general manufacturing and shop-floor inspection environments. This gage is well suited for checking toleranced holes in metal, plastic, or composite workpieces where a reliable, hand-held attribute gage is preferred over a measuring instrument. The compact size and steel construction make it practical for repeated use in standard QC workflow.

Key Features

• 0.583 inch nominal diameter for precise hole verification
• Class ZZ Plus tolerance grade at 0.0002 inches for production inspection
• Steel construction for durability in shop environments
• Compact form factor suitable for hand-held use at the machine or inspection station
• Single-piece package for individual gage replacement or addition to existing gage sets

Compatibility

Designed as an OEM-style plug gage for use in standard go/no-go inspection setups requiring a 0.583 inch nominal hole diameter check at Class ZZ Plus tolerance.

Installation Notes

Plug gages require no installation but should be handled by quality control or machining personnel familiar with attribute gaging practices. Before use, clean the gage and the hole being checked to remove chips, coolant, or debris that could affect the reading. Do not force the gage into an undersized hole, as this can damage the gage or the workpiece. Store the gage in a protective case and calibrate periodically per your facility quality management program.