Spi 616-82912 Class Zz Plug Gage Set 100 Pc Steel

Product Description

The SPI 616-82912 is a 100-piece Class ZZ double-end plug gage set designed for checking hole diameters in precision machining and inspection applications. The set covers a minimum diameter of 0.011 inches through a maximum diameter of 0.1 inches, with a tolerance range of +0.0000 to +0.0005 inches using a minus tolerance type. Each gage is manufactured from steel for durability in shop environments. This set is used by machinists, quality control technicians, and tool room professionals who need a broad range of GO/NO-GO hole inspection capability in a single kit.

This plug gage set is suited for use in manufacturing, machine shops, and inspection rooms where small-bore hole verification is required. The double-end design provides both GO and NO-GO gages in a single handle, streamlining the inspection workflow. The 100-piece range makes this set practical for facilities that machine a wide variety of hole sizes within the 0.011 to 0.1 inch range. Applications include checking drilled, reamed, or bored holes in metal components to verify dimensional conformance before assembly.

Key Features

• 100-piece set covers 0.011 to 0.1 inches in diameter range
• Class ZZ tolerance: +0.0000 to +0.0005 inches (minus tolerance type)
• Double-end design provides GO and NO-GO gages per handle
• Steel construction for wear resistance in production environments
• Compact kit format for broad small-bore inspection coverage

Compatibility

Designed as a standard Class ZZ plug gage set for verifying small-bore hole dimensions in general machining and inspection applications where diameters from 0.011 to 0.1 inches must be confirmed to tolerance.

Installation Notes

Plug gages are used by quality control and machining professionals and require no permanent installation. Store gages in the provided case to prevent damage to gage surfaces. Clean and lightly oil gage pins before and after use to prevent corrosion and maintain accuracy. Do not force a gage into a hole; if resistance is felt on the GO end, the hole is undersize and should be reworked before re-gauging.