Spi 29-196-3 Class Zz Plus Plug Gage 0.196 Inch

Product Description

The SPI 29-196-3 is a Class ZZ Plus plug gage designed for precision hole measurement in manufacturing and inspection environments. Built to a nominal diameter of 0.196 inches with a tolerance of 0.0002 inches, this gage provides reliable go/no-go verification for small-diameter bores. The steel construction holds its form under repeated use, maintaining dimensional integrity across high-volume inspection cycles. Machinists, quality control technicians, and tool room professionals rely on this type of gage for fast, repeatable attribute inspection without the setup time required by variable measuring instruments.

This plug gage is suited for incoming inspection, in-process quality checks, and final inspection of drilled, reamed, or bored holes where tight dimensional control is required. It is appropriate for use in machine shops, production floors, and inspection departments handling precision components in industries such as aerospace, automotive, and general manufacturing. The compact size and single-piece design make it easy to handle in confined inspection areas or at the machine.

Key Features

• Class ZZ Plus tolerance classification for attribute-style go/no-go hole inspection
• Nominal measurement diameter of 0.196 inches for small-bore applications
• Tolerance of 0.0002 inches (0.0051 mm) for precise dimensional verification
• Steel construction provides durability and dimensional stability under repeated use
• Single-piece design supports fast, repeatable inspection without setup

Compatibility

Designed as an OEM-style replacement or direct-use plug gage for inspection of 0.196-inch nominal diameter holes in standard go/no-go gage applications.

Installation Notes

Plug gages are handled by quality control technicians and machinists trained in attribute inspection methods. Clean the gage and bore thoroughly before use to prevent contamination from affecting the reading. Do not force the gage into the hole, as this can cause wear or damage to both the gage and the workpiece. Store the gage in its protective case when not in use to prevent corrosion and gage wear.