Spi 29-599-8 Class Zz Plus Plug Gage 0.599 in

Product Description

The SPI 29-599-8 is a Class ZZ Plus plug gage designed for precision hole diameter verification in production and inspection environments. It measures a nominal diameter of 0.599 inches with a tolerance of 0.0002 inches, making it suitable for go/no-go gauging applications where tight dimensional control is required. The gage is constructed from steel for durability and dimensional stability. Machinists, quality control technicians, and tool room professionals use this type of gage to verify bore sizes on machined components, ensuring parts meet drawing tolerances before assembly or shipment.

Class ZZ Plus plug gages are typically used in general-purpose inspection of machined holes in manufacturing and fabrication settings. This gage is appropriate for both job shop and production floor use where a reliable, traceable reference for 0.599-inch bores is needed. It is well suited for use with standard gage blocks and calibration records maintained under ISO or in-house quality systems. The compact size and low weight make it easy to handle during repetitive inspection tasks.

Key Features

• Nominal measurement diameter of 0.599 inches for precise bore verification
• Class ZZ Plus tolerance of 0.0002 inches for general-purpose production inspection
• Steel construction provides dimensional stability and wear resistance
• Lightweight at 0.2 pounds for easy single-hand use during inspection
• Single-piece package quantity suits individual tool replacement or kit builds

Compatibility

Designed as a standard Class ZZ Plus plug gage for general-purpose inspection of machined bores nominally sized at 0.599 inches in diameter.

Installation Notes

Plug gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin contact. Store the gage in a protective case away from abrasive surfaces and temperature extremes to maintain calibration integrity. Verify the gage against a certified master or gage block set on a regular calibration interval per your quality management system. Do not force the gage into a bore; if resistance is felt, the hole is undersize and should be flagged for rework.