Spi 616-62072 Class Zz Plug Gage Set 101 Pc Steel

Product Description

The SPI 616-62072 is a 101-piece Class ZZ double-end plug gage set designed for go/no-go dimensional inspection of hole diameters ranging from 0.2362 to 0.2756 inches (6.000 mm to 7.000 mm). Each gage member carries a bilateral tolerance of plus or minus 0.002000 inches, meeting Class ZZ standards for general-purpose inspection work. The set is constructed from steel for durability and dimensional stability under shop-floor conditions. Machinists, quality technicians, and toolroom personnel use this set to verify bored, drilled, reamed, or punched hole diameters quickly and without specialized equipment.

This plug gage set is suited for use in manufacturing, machining, and quality control environments where rapid, repeatable hole-size verification is required across a range of metric and inch dimensions. The double-end configuration provides both go and no-go members in a single handle, reducing tool changes and speeding up inspection routines. The 101-piece coverage across the stated diameter range makes this set appropriate for production lines and toolrooms handling a variety of workpiece sizes.

Key Features

• 101-piece set covers 0.2362 to 0.2756 inch (6.000 to 7.000 mm) diameter range
• Class ZZ tolerance of plus or minus 0.002000 inches for general-purpose inspection
• Double-end design combines go and no-go members in one handle
• Steel construction for shop-floor durability and dimensional stability
• Inch and metric diameter callouts included across the full range

Compatibility

Designed as a general-purpose Class ZZ plug gage set for dimensional inspection of holes in the 0.2362 to 0.2756 inch range in machined components, toolroom work, and production quality control applications.

Installation Notes

Plug gages are handled and used by machinists and quality control technicians, not installed in the traditional sense. Clean gage members and workpiece holes before use to prevent debris from affecting readings. Store gages in the supplied case and protect from impact or contact with abrasive surfaces to maintain tolerance integrity. Calibration and periodic inspection against gage blocks or a certified master are recommended practice under ISO and ASME B89 measurement standards.