Spi 29-130-2 Class Zz Plus Plug Gage 0.13 Inch

Product Description

The SPI 29-130-2 is a Class ZZ Plus plug gage designed for precision go/no-go measurement of internal bore diameters. Built to a tolerance of 0.0002 inches, this gage provides repeatable, traceable measurement suitable for production inspection and quality control environments. The steel construction delivers durability under regular shop-floor use. It is sized for a 0.13-inch nominal diameter and is used by machinists, tool room technicians, and quality inspection professionals to verify that drilled, reamed, or bored holes fall within specified dimensional limits.

This plug gage is suited for use in manufacturing, machining, and precision fabrication environments where tight bore tolerances must be verified. Typical applications include inspection of small-diameter holes in metal components during in-process or final inspection. The 0.13-inch diameter makes it appropriate for fine-bore work encountered in the production of precision mechanical assemblies, fastener holes, and similar features requiring close dimensional control.

Key Features

• Class ZZ Plus tolerance rating at 0.0002 inches for high-accuracy bore inspection
• 0.13-inch nominal measurement diameter
• Steel construction for durability and wear resistance in production environments
• Compact and lightweight at 0.2 pounds for easy one-handed use
• Go/no-go style verification eliminates ambiguity in pass/fail inspection decisions

Compatibility

Designed as an OEM-style replacement and standard-fit plug gage for applications requiring Class ZZ Plus go/no-go inspection of 0.13-inch nominal internal bore diameters in steel or similar materials.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no permanent installation is required. Before use, clean the gage and the bore being measured to remove chips, oil, and debris that could affect measurement accuracy. Store the gage in a protective case when not in use to prevent surface damage that would alter its calibration. Periodic recalibration against a certified master is recommended to maintain measurement traceability per shop quality standards.