Spi 29-015-5 Class Zz Plus Plug Gage 0.015 in

Product Description

The SPI 29-015-5 is a Class ZZ Plus plug gage used to verify bore and hole diameters to precise tolerances in machining, inspection, and quality control applications. This gage measures a nominal diameter of 0.015 inches with a tolerance of 0.0002 inches, making it suitable for tight-tolerance work where dimensional accuracy is critical. Constructed from steel, the 29-015-5 is built to withstand repeated use in production and inspection environments. Machinists, toolmakers, and quality technicians rely on Class ZZ plug gages for go/no-go inspection of small diameter features on machined parts.

This plug gage is intended for use in precision inspection settings, including machine shops, manufacturing facilities, and quality assurance labs. It is suited for checking small-diameter bores and holes in production parts where conformance to dimensional specifications must be verified. The 0.015-inch diameter range places this gage in the category of wire-size plug gages, typically used on very small drilled or reamed holes. It is appropriate for both incoming inspection and in-process quality checks on metalworking, tooling, and precision component applications.

Key Features

• Nominal measurement diameter of 0.015 inches for small-bore inspection
• Class ZZ Plus tolerance rating of 0.0002 inches for precision go/no-go gauging
• Steel construction for durability in repeated production inspection use
• Compact, single-piece gage format suited for wire-size diameter ranges
• Individual unit packaging for bench and field inspection use

Compatibility

Designed as an OEM-style precision inspection tool for use wherever Class ZZ Plus plug gages in the 0.015-inch diameter range are specified in quality control or machining workflows.

Installation Notes

Plug gages are handled and used by machinists, toolmakers, and quality control technicians. Before use, clean the gage and the hole being inspected to remove chips, coolant, and debris that could affect readings. Handle steel plug gages carefully to avoid dropping or contact with hard surfaces that could alter the gage diameter. Store gages in a protective case or designated holder to prevent corrosion and damage between uses.